diff --git a/include/mbedtls/asn1.h b/include/mbedtls/asn1.h
index f45fc1751..4746c1cb4 100644
--- a/include/mbedtls/asn1.h
+++ b/include/mbedtls/asn1.h
@@ -152,9 +152,9 @@ extern "C" {
  */
 typedef struct mbedtls_asn1_buf
 {
-    int MBEDTLS_PRIVATE(tag);                /**< ASN1 type, e.g. MBEDTLS_ASN1_UTF8_STRING. */
-    size_t MBEDTLS_PRIVATE(len);             /**< ASN1 length, in octets. */
-    unsigned char *MBEDTLS_PRIVATE(p);       /**< ASN1 data, e.g. in ASCII. */
+    int tag;                /**< ASN1 type, e.g. MBEDTLS_ASN1_UTF8_STRING. */
+    size_t len;             /**< ASN1 length, in octets. */
+    unsigned char *p;       /**< ASN1 data, e.g. in ASCII. */
 }
 mbedtls_asn1_buf;
 
@@ -163,9 +163,9 @@ mbedtls_asn1_buf;
  */
 typedef struct mbedtls_asn1_bitstring
 {
-    size_t MBEDTLS_PRIVATE(len);                 /**< ASN1 length, in octets. */
-    unsigned char MBEDTLS_PRIVATE(unused_bits);  /**< Number of unused bits at the end of the string */
-    unsigned char *MBEDTLS_PRIVATE(p);           /**< Raw ASN1 data for the bit string */
+    size_t len;                 /**< ASN1 length, in octets. */
+    unsigned char unused_bits;  /**< Number of unused bits at the end of the string */
+    unsigned char *p;           /**< Raw ASN1 data for the bit string */
 }
 mbedtls_asn1_bitstring;
 
@@ -174,8 +174,16 @@ mbedtls_asn1_bitstring;
  */
 typedef struct mbedtls_asn1_sequence
 {
-    mbedtls_asn1_buf MBEDTLS_PRIVATE(buf);                   /**< Buffer containing the given ASN.1 item. */
-    struct mbedtls_asn1_sequence *MBEDTLS_PRIVATE(next);    /**< The next entry in the sequence. */
+    mbedtls_asn1_buf buf;                   /**< Buffer containing the given ASN.1 item. */
+
+    /** The next entry in the sequence.
+     *
+     * The details of memory management for sequences are not documented and
+     * may change in future versions. Set this field to \p NULL when
+     * initializing a structure, and do not modify it except via Mbed TLS
+     * library functions.
+     */
+    struct mbedtls_asn1_sequence *next;
 }
 mbedtls_asn1_sequence;
 
@@ -184,10 +192,24 @@ mbedtls_asn1_sequence;
  */
 typedef struct mbedtls_asn1_named_data
 {
-    mbedtls_asn1_buf MBEDTLS_PRIVATE(oid);                   /**< The object identifier. */
-    mbedtls_asn1_buf MBEDTLS_PRIVATE(val);                   /**< The named value. */
-    struct mbedtls_asn1_named_data *MBEDTLS_PRIVATE(next);  /**< The next entry in the sequence. */
-    unsigned char MBEDTLS_PRIVATE(next_merged);      /**< Merge next item into the current one? */
+    mbedtls_asn1_buf oid;                   /**< The object identifier. */
+    mbedtls_asn1_buf val;                   /**< The named value. */
+
+    /** The next entry in the sequence.
+     *
+     * The details of memory management for named data sequences are not
+     * documented and may change in future versions. Set this field to \p NULL
+     * when initializing a structure, and do not modify it except via Mbed TLS
+     * library functions.
+     */
+    struct mbedtls_asn1_named_data *next;
+
+    /** Merge next item into the current one?
+     *
+     * This field exists for the sake of Mbed TLS's X.509 certificate parsing
+     * code and may change in future versions of the library.
+     */
+    unsigned char MBEDTLS_PRIVATE(next_merged);
 }
 mbedtls_asn1_named_data;
 
diff --git a/include/mbedtls/cipher.h b/include/mbedtls/cipher.h
index 9c9a2e88c..b4630f63c 100644
--- a/include/mbedtls/cipher.h
+++ b/include/mbedtls/cipher.h
@@ -258,6 +258,13 @@ typedef struct mbedtls_cmac_context_t mbedtls_cmac_context_t;
 /**
  * Cipher information. Allows calling cipher functions
  * in a generic way.
+ *
+ * \note        The library does not support custom cipher info structures,
+ *              only built-in structures returned by the functions
+ *              mbedtls_cipher_info_from_string(),
+ *              mbedtls_cipher_info_from_type(),
+ *              mbedtls_cipher_info_from_values(),
+ *              mbedtls_cipher_info_from_psa().
  */
 typedef struct mbedtls_cipher_info_t
 {
@@ -414,6 +421,82 @@ const mbedtls_cipher_info_t *mbedtls_cipher_info_from_values( const mbedtls_ciph
                                               int key_bitlen,
                                               const mbedtls_cipher_mode_t mode );
 
+/**
+ * \brief               Retrieve the identifier for a cipher info structure.
+ *
+ * \param[in] info      The cipher info structure to query.
+ *                      This may be \c NULL.
+ *
+ * \return              The full cipher identifier (\c MBEDTLS_CIPHER_xxx).
+ * \return              #MBEDTLS_CIPHER_NONE if \p info is \c NULL.
+ */
+static inline mbedtls_cipher_type_t mbedtls_cipher_info_get_type(
+    const mbedtls_cipher_info_t *info )
+{
+    if( info == NULL )
+        return( MBEDTLS_CIPHER_NONE );
+    else
+        return( info->MBEDTLS_PRIVATE(type) );
+}
+
+/**
+ * \brief               Retrieve the operation mode for a cipher info structure.
+ *
+ * \param[in] info      The cipher info structure to query.
+ *                      This may be \c NULL.
+ *
+ * \return              The cipher mode (\c MBEDTLS_MODE_xxx).
+ * \return              #MBEDTLS_MODE_NONE if \p info is \c NULL.
+ */
+static inline mbedtls_cipher_mode_t mbedtls_cipher_info_get_mode(
+    const mbedtls_cipher_info_t *info )
+{
+    if( info == NULL )
+        return( MBEDTLS_MODE_NONE );
+    else
+        return( info->MBEDTLS_PRIVATE(mode) );
+}
+
+/**
+ * \brief               Retrieve the key size for a cipher info structure.
+ *
+ * \param[in] info      The cipher info structure to query.
+ *                      This may be \c NULL.
+ *
+ * \return              The key length in bits.
+ *                      For variable-sized ciphers, this is the default length.
+ *                      For DES, this includes the parity bits.
+ * \return              \c 0 if \p info is \c NULL.
+ */
+static inline size_t mbedtls_cipher_info_get_key_bitlen(
+    const mbedtls_cipher_info_t *info )
+{
+    if( info == NULL )
+        return( 0 );
+    else
+        return( info->MBEDTLS_PRIVATE(key_bitlen) );
+}
+
+/**
+ * \brief               Retrieve the human-readable name for a
+ *                      cipher info structure.
+ *
+ * \param[in] info      The cipher info structure to query.
+ *                      This may be \c NULL.
+ *
+ * \return              The cipher name, which is a human readable string,
+ *                      with static storage duration.
+ * \return              \c NULL if \c info is \p NULL.
+ */
+static inline const char *mbedtls_cipher_info_get_name(
+    const mbedtls_cipher_info_t *info )
+{
+    if( info == NULL )
+        return( NULL );
+    else
+        return( info->MBEDTLS_PRIVATE(name) );
+}
+
 /**
  * \brief               This function initializes a \p cipher_context as NONE.
  *
diff --git a/include/mbedtls/ecp.h b/include/mbedtls/ecp.h
index 384d0608a..b2a2e3256 100644
--- a/include/mbedtls/ecp.h
+++ b/include/mbedtls/ecp.h
@@ -147,13 +147,17 @@ typedef enum
 
 /**
  * Curve information, for use by other modules.
+ *
+ * The fields of this structure are part of the public API and can be
+ * accessed directly by applications. Future versions of the library may
+ * add extra fields or reorder existing fields.
  */
 typedef struct mbedtls_ecp_curve_info
 {
-    mbedtls_ecp_group_id MBEDTLS_PRIVATE(grp_id);    /*!< An internal identifier. */
-    uint16_t MBEDTLS_PRIVATE(tls_id);                /*!< The TLS NamedCurve identifier. */
-    uint16_t MBEDTLS_PRIVATE(bit_size);              /*!< The curve size in bits. */
-    const char *MBEDTLS_PRIVATE(name);               /*!< A human-friendly name. */
+    mbedtls_ecp_group_id grp_id;    /*!< An internal identifier. */
+    uint16_t tls_id;                /*!< The TLS NamedCurve identifier. */
+    uint16_t bit_size;              /*!< The curve size in bits. */
+    const char *name;               /*!< A human-friendly name. */
 } mbedtls_ecp_curve_info;
 
 /**
diff --git a/include/mbedtls/net_sockets.h b/include/mbedtls/net_sockets.h
index c8214a233..0c754b122 100644
--- a/include/mbedtls/net_sockets.h
+++ b/include/mbedtls/net_sockets.h
@@ -94,7 +94,13 @@ extern "C" {
  */
 typedef struct mbedtls_net_context
 {
-    int MBEDTLS_PRIVATE(fd);             /**< The underlying file descriptor                 */
+    /** The underlying file descriptor.
+     *
+     * This field is only guaranteed to be present on POSIX/Unix-like platforms.
+     * On other platforms, it may have a different type, have a different
+     * meaning, or be absent altogether.
+     */
+    int fd;
 }
 mbedtls_net_context;
 
diff --git a/include/mbedtls/pk.h b/include/mbedtls/pk.h
index ded52225f..5f9f29ff6 100644
--- a/include/mbedtls/pk.h
+++ b/include/mbedtls/pk.h
@@ -186,6 +186,10 @@ typedef struct mbedtls_pk_debug_item
 
 /**
  * \brief           Public key information and operations
+ *
+ * \note        The library does not support custom pk info structures,
+ *              only built-in structures returned by
+ *              mbedtls_cipher_info_from_type().
  */
 typedef struct mbedtls_pk_info_t mbedtls_pk_info_t;
 
diff --git a/include/mbedtls/psa_util.h b/include/mbedtls/psa_util.h
index f6f2e5805..6f6354591 100644
--- a/include/mbedtls/psa_util.h
+++ b/include/mbedtls/psa_util.h
@@ -369,7 +369,7 @@ static inline psa_key_type_t mbedtls_psa_parse_tls_ecc_group(
     if( curve_info == NULL )
         return( 0 );
     return( PSA_KEY_TYPE_ECC_KEY_PAIR(
-                mbedtls_ecc_group_to_psa( curve_info->MBEDTLS_PRIVATE(grp_id), bits ) ) );
+                mbedtls_ecc_group_to_psa( curve_info->grp_id, bits ) ) );
 }
 #endif /* MBEDTLS_ECP_C */
 
diff --git a/include/mbedtls/x509.h b/include/mbedtls/x509.h
index df187cb09..9a4be95a3 100644
--- a/include/mbedtls/x509.h
+++ b/include/mbedtls/x509.h
@@ -246,8 +246,8 @@ typedef mbedtls_asn1_sequence mbedtls_x509_sequence;
 /** Container for date and time (precision in seconds). */
 typedef struct mbedtls_x509_time
 {
-    int MBEDTLS_PRIVATE(year), MBEDTLS_PRIVATE(mon), MBEDTLS_PRIVATE(day);         /**< Date. */
-    int MBEDTLS_PRIVATE(hour), MBEDTLS_PRIVATE(min), MBEDTLS_PRIVATE(sec);         /**< Time. */
+    int year, mon, day;         /**< Date. */
+    int hour, min, sec;         /**< Time. */
 }
 mbedtls_x509_time;
 
diff --git a/include/mbedtls/x509_crl.h b/include/mbedtls/x509_crl.h
index 9331827bb..52bd43cd3 100644
--- a/include/mbedtls/x509_crl.h
+++ b/include/mbedtls/x509_crl.h
@@ -43,18 +43,30 @@ extern "C" {
 /**
  * Certificate revocation list entry.
  * Contains the CA-specific serial numbers and revocation dates.
+ *
+ * Some fields of this structure are publicly readable. Do not modify
+ * them except via Mbed TLS library functions: the effect of modifying
+ * those fields or the data that those fields points to is unspecified.
  */
 typedef struct mbedtls_x509_crl_entry
 {
-    mbedtls_x509_buf MBEDTLS_PRIVATE(raw);
+    /** Direct access to the whole entry inside the containing buffer. */
+    mbedtls_x509_buf raw;
+    /** The serial number of the revoked certificate. */
+    mbedtls_x509_buf serial;
+    /** The revocation date of this entry. */
+    mbedtls_x509_time revocation_date;
+    /** Direct access to the list of CRL entry extensions
+     * (an ASN.1 constructed sequence).
+     *
+     * If there are no extensions, `entry_ext.len == 0` and
+     * `entry_ext.p == NULL`. */
+    mbedtls_x509_buf entry_ext;
 
-    mbedtls_x509_buf MBEDTLS_PRIVATE(serial);
-
-    mbedtls_x509_time MBEDTLS_PRIVATE(revocation_date);
-
-    mbedtls_x509_buf MBEDTLS_PRIVATE(entry_ext);
-
-    struct mbedtls_x509_crl_entry *MBEDTLS_PRIVATE(next);
+    /** Next element in the linked list of entries.
+     * \p NULL indicates the end of the list.
+     * Do not modify this field directly. */
+    struct mbedtls_x509_crl_entry *next;
 }
 mbedtls_x509_crl_entry;
 
@@ -64,22 +76,22 @@ mbedtls_x509_crl_entry;
  */
 typedef struct mbedtls_x509_crl
 {
-    mbedtls_x509_buf MBEDTLS_PRIVATE(raw);           /**< The raw certificate data (DER). */
-    mbedtls_x509_buf MBEDTLS_PRIVATE(tbs);           /**< The raw certificate body (DER). The part that is To Be Signed. */
+    mbedtls_x509_buf raw;           /**< The raw certificate data (DER). */
+    mbedtls_x509_buf tbs;           /**< The raw certificate body (DER). The part that is To Be Signed. */
 
-    int MBEDTLS_PRIVATE(version);            /**< CRL version (1=v1, 2=v2) */
-    mbedtls_x509_buf MBEDTLS_PRIVATE(sig_oid);       /**< CRL signature type identifier */
+    int version;            /**< CRL version (1=v1, 2=v2) */
+    mbedtls_x509_buf sig_oid;       /**< CRL signature type identifier */
 
-    mbedtls_x509_buf MBEDTLS_PRIVATE(issuer_raw);    /**< The raw issuer data (DER). */
+    mbedtls_x509_buf issuer_raw;    /**< The raw issuer data (DER). */
 
-    mbedtls_x509_name MBEDTLS_PRIVATE(issuer);       /**< The parsed issuer data (named information object). */
+    mbedtls_x509_name issuer;       /**< The parsed issuer data (named information object). */
 
-    mbedtls_x509_time MBEDTLS_PRIVATE(this_update);
-    mbedtls_x509_time MBEDTLS_PRIVATE(next_update);
+    mbedtls_x509_time this_update;
+    mbedtls_x509_time next_update;
 
-    mbedtls_x509_crl_entry MBEDTLS_PRIVATE(entry);   /**< The CRL entries containing the certificate revocation times for this CA. */
+    mbedtls_x509_crl_entry entry;   /**< The CRL entries containing the certificate revocation times for this CA. */
 
-    mbedtls_x509_buf MBEDTLS_PRIVATE(crl_ext);
+    mbedtls_x509_buf crl_ext;
 
     mbedtls_x509_buf MBEDTLS_PRIVATE(sig_oid2);
     mbedtls_x509_buf MBEDTLS_PRIVATE(sig);
@@ -87,7 +99,10 @@ typedef struct mbedtls_x509_crl
     mbedtls_pk_type_t MBEDTLS_PRIVATE(sig_pk);           /**< Internal representation of the Public Key algorithm of the signature algorithm, e.g. MBEDTLS_PK_RSA */
     void *MBEDTLS_PRIVATE(sig_opts);             /**< Signature options to be passed to mbedtls_pk_verify_ext(), e.g. for RSASSA-PSS */
 
-    struct mbedtls_x509_crl *MBEDTLS_PRIVATE(next);
+    /** Next element in the linked list of CRL.
+     * \p NULL indicates the end of the list.
+     * Do not modify this field directly. */
+    struct mbedtls_x509_crl *next;
 }
 mbedtls_x509_crl;
 
diff --git a/include/mbedtls/x509_crt.h b/include/mbedtls/x509_crt.h
index 49211a948..3c11a9989 100644
--- a/include/mbedtls/x509_crt.h
+++ b/include/mbedtls/x509_crt.h
@@ -45,36 +45,40 @@ extern "C" {
 
 /**
  * Container for an X.509 certificate. The certificate may be chained.
+ *
+ * Some fields of this structure are publicly readable. Do not modify
+ * them except via Mbed TLS library functions: the effect of modifying
+ * those fields or the data that those fields points to is unspecified.
  */
 typedef struct mbedtls_x509_crt
 {
     int MBEDTLS_PRIVATE(own_buffer);                     /**< Indicates if \c raw is owned
                                          *   by the structure or not.        */
-    mbedtls_x509_buf MBEDTLS_PRIVATE(raw);               /**< The raw certificate data (DER). */
-    mbedtls_x509_buf MBEDTLS_PRIVATE(tbs);               /**< The raw certificate body (DER). The part that is To Be Signed. */
+    mbedtls_x509_buf raw;               /**< The raw certificate data (DER). */
+    mbedtls_x509_buf tbs;               /**< The raw certificate body (DER). The part that is To Be Signed. */
 
-    int MBEDTLS_PRIVATE(version);                /**< The X.509 version. (1=v1, 2=v2, 3=v3) */
-    mbedtls_x509_buf MBEDTLS_PRIVATE(serial);            /**< Unique id for certificate issued by a specific CA. */
-    mbedtls_x509_buf MBEDTLS_PRIVATE(sig_oid);           /**< Signature algorithm, e.g. sha1RSA */
+    int version;                /**< The X.509 version. (1=v1, 2=v2, 3=v3) */
+    mbedtls_x509_buf serial;            /**< Unique id for certificate issued by a specific CA. */
+    mbedtls_x509_buf sig_oid;           /**< Signature algorithm, e.g. sha1RSA */
 
-    mbedtls_x509_buf MBEDTLS_PRIVATE(issuer_raw);        /**< The raw issuer data (DER). Used for quick comparison. */
-    mbedtls_x509_buf MBEDTLS_PRIVATE(subject_raw);       /**< The raw subject data (DER). Used for quick comparison. */
+    mbedtls_x509_buf issuer_raw;        /**< The raw issuer data (DER). Used for quick comparison. */
+    mbedtls_x509_buf subject_raw;       /**< The raw subject data (DER). Used for quick comparison. */
 
-    mbedtls_x509_name MBEDTLS_PRIVATE(issuer);           /**< The parsed issuer data (named information object). */
-    mbedtls_x509_name MBEDTLS_PRIVATE(subject);          /**< The parsed subject data (named information object). */
+    mbedtls_x509_name issuer;           /**< The parsed issuer data (named information object). */
+    mbedtls_x509_name subject;          /**< The parsed subject data (named information object). */
 
-    mbedtls_x509_time MBEDTLS_PRIVATE(valid_from);       /**< Start time of certificate validity. */
-    mbedtls_x509_time MBEDTLS_PRIVATE(valid_to);         /**< End time of certificate validity. */
+    mbedtls_x509_time valid_from;       /**< Start time of certificate validity. */
+    mbedtls_x509_time valid_to;         /**< End time of certificate validity. */
 
-    mbedtls_x509_buf MBEDTLS_PRIVATE(pk_raw);
-    mbedtls_pk_context MBEDTLS_PRIVATE(pk);              /**< Container for the public key context. */
+    mbedtls_x509_buf pk_raw;
+    mbedtls_pk_context pk;              /**< Container for the public key context. */
 
-    mbedtls_x509_buf MBEDTLS_PRIVATE(issuer_id);         /**< Optional X.509 v2/v3 issuer unique identifier. */
-    mbedtls_x509_buf MBEDTLS_PRIVATE(subject_id);        /**< Optional X.509 v2/v3 subject unique identifier. */
-    mbedtls_x509_buf MBEDTLS_PRIVATE(v3_ext);            /**< Optional X.509 v3 extensions.  */
-    mbedtls_x509_sequence MBEDTLS_PRIVATE(subject_alt_names);    /**< Optional list of raw entries of Subject Alternative Names extension (currently only dNSName and OtherName are listed). */
+    mbedtls_x509_buf issuer_id;         /**< Optional X.509 v2/v3 issuer unique identifier. */
+    mbedtls_x509_buf subject_id;        /**< Optional X.509 v2/v3 subject unique identifier. */
+    mbedtls_x509_buf v3_ext;            /**< Optional X.509 v3 extensions.  */
+    mbedtls_x509_sequence subject_alt_names;    /**< Optional list of raw entries of Subject Alternative Names extension (currently only dNSName and OtherName are listed). */
 
-    mbedtls_x509_sequence MBEDTLS_PRIVATE(certificate_policies); /**< Optional list of certificate policies (Only anyPolicy is printed and enforced, however the rest of the policies are still listed). */
+    mbedtls_x509_sequence certificate_policies; /**< Optional list of certificate policies (Only anyPolicy is printed and enforced, however the rest of the policies are still listed). */
 
     int MBEDTLS_PRIVATE(ext_types);              /**< Bit string containing detected and parsed extensions */
     int MBEDTLS_PRIVATE(ca_istrue);              /**< Optional Basic Constraint extension value: 1 if this certificate belongs to a CA, 0 otherwise. */
@@ -82,7 +86,7 @@ typedef struct mbedtls_x509_crt
 
     unsigned int MBEDTLS_PRIVATE(key_usage);     /**< Optional key usage extension value: See the values in x509.h */
 
-    mbedtls_x509_sequence MBEDTLS_PRIVATE(ext_key_usage); /**< Optional list of extended key usage OIDs. */
+    mbedtls_x509_sequence ext_key_usage; /**< Optional list of extended key usage OIDs. */
 
     unsigned char MBEDTLS_PRIVATE(ns_cert_type); /**< Optional Netscape certificate type extension value: See the values in x509.h */
 
@@ -91,7 +95,10 @@ typedef struct mbedtls_x509_crt
     mbedtls_pk_type_t MBEDTLS_PRIVATE(sig_pk);           /**< Internal representation of the Public Key algorithm of the signature algorithm, e.g. MBEDTLS_PK_RSA */
     void *MBEDTLS_PRIVATE(sig_opts);             /**< Signature options to be passed to mbedtls_pk_verify_ext(), e.g. for RSASSA-PSS */
 
-    struct mbedtls_x509_crt *MBEDTLS_PRIVATE(next);     /**< Next certificate in the CA-chain. */
+    /** Next certificate in the linked list that constitutes the CA chain.
+     * \p NULL indicates the end of the list.
+     * Do not modify this field directly. */
+    struct mbedtls_x509_crt *next;
 }
 mbedtls_x509_crt;
 
@@ -100,6 +107,9 @@ mbedtls_x509_crt;
  * OtherName ::= SEQUENCE {
  *      type-id    OBJECT IDENTIFIER,
  *      value      [0] EXPLICIT ANY DEFINED BY type-id }
+ *
+ * Future versions of the library may add new fields to this structure or
+ * to its embedded union and structure.
  */
 typedef struct mbedtls_x509_san_other_name
 {
@@ -108,7 +118,7 @@ typedef struct mbedtls_x509_san_other_name
      * To check the value of the type id, you should use
      * \p MBEDTLS_OID_CMP with a known OID mbedtls_x509_buf.
      */
-    mbedtls_x509_buf MBEDTLS_PRIVATE(type_id);                   /**< The type id. */
+    mbedtls_x509_buf type_id;                   /**< The type id. */
     union
     {
         /**
@@ -119,26 +129,30 @@ typedef struct mbedtls_x509_san_other_name
          */
         struct
         {
-            mbedtls_x509_buf MBEDTLS_PRIVATE(oid);               /**< The object identifier. */
-            mbedtls_x509_buf MBEDTLS_PRIVATE(val);               /**< The named value. */
+            mbedtls_x509_buf oid;               /**< The object identifier. */
+            mbedtls_x509_buf val;               /**< The named value. */
         }
-        MBEDTLS_PRIVATE(hardware_module_name);
+        hardware_module_name;
     }
-    MBEDTLS_PRIVATE(value);
+    value;
 }
 mbedtls_x509_san_other_name;
 
 /**
- * A structure for holding the parsed Subject Alternative Name, according to type
+ * A structure for holding the parsed Subject Alternative Name,
+ * according to type.
+ *
+ * Future versions of the library may add new fields to this structure or
+ * to its embedded union and structure.
  */
 typedef struct mbedtls_x509_subject_alternative_name
 {
-    int MBEDTLS_PRIVATE(type);                              /**< The SAN type, value of MBEDTLS_X509_SAN_XXX. */
+    int type;                              /**< The SAN type, value of MBEDTLS_X509_SAN_XXX. */
     union {
-        mbedtls_x509_san_other_name MBEDTLS_PRIVATE(other_name); /**< The otherName supported type. */
-        mbedtls_x509_buf   MBEDTLS_PRIVATE(unstructured_name); /**< The buffer for the un constructed types. Only dnsName currently supported */
+        mbedtls_x509_san_other_name other_name; /**< The otherName supported type. */
+        mbedtls_x509_buf   unstructured_name; /**< The buffer for the un constructed types. Only dnsName currently supported */
     }
-    MBEDTLS_PRIVATE(san); /**< A union of the supported SAN types */
+    san; /**< A union of the supported SAN types */
 }
 mbedtls_x509_subject_alternative_name;
 
diff --git a/include/mbedtls/x509_csr.h b/include/mbedtls/x509_csr.h
index 674f9ce79..f80a1a130 100644
--- a/include/mbedtls/x509_csr.h
+++ b/include/mbedtls/x509_csr.h
@@ -42,20 +42,24 @@ extern "C" {
 
 /**
  * Certificate Signing Request (CSR) structure.
+ *
+ * Some fields of this structure are publicly readable. Do not modify
+ * them except via Mbed TLS library functions: the effect of modifying
+ * those fields or the data that those fields point to is unspecified.
  */
 typedef struct mbedtls_x509_csr
 {
-    mbedtls_x509_buf MBEDTLS_PRIVATE(raw);           /**< The raw CSR data (DER). */
-    mbedtls_x509_buf MBEDTLS_PRIVATE(cri);           /**< The raw CertificateRequestInfo body (DER). */
+    mbedtls_x509_buf raw;           /**< The raw CSR data (DER). */
+    mbedtls_x509_buf cri;           /**< The raw CertificateRequestInfo body (DER). */
 
-    int MBEDTLS_PRIVATE(version);            /**< CSR version (1=v1). */
+    int version;            /**< CSR version (1=v1). */
 
-    mbedtls_x509_buf  MBEDTLS_PRIVATE(subject_raw);  /**< The raw subject data (DER). */
-    mbedtls_x509_name MBEDTLS_PRIVATE(subject);      /**< The parsed subject data (named information object). */
+    mbedtls_x509_buf  subject_raw;  /**< The raw subject data (DER). */
+    mbedtls_x509_name subject;      /**< The parsed subject data (named information object). */
 
-    mbedtls_pk_context MBEDTLS_PRIVATE(pk);          /**< Container for the public key context. */
+    mbedtls_pk_context pk;          /**< Container for the public key context. */
 
-    mbedtls_x509_buf MBEDTLS_PRIVATE(sig_oid);
+    mbedtls_x509_buf sig_oid;
     mbedtls_x509_buf MBEDTLS_PRIVATE(sig);
     mbedtls_md_type_t MBEDTLS_PRIVATE(sig_md);       /**< Internal representation of the MD algorithm of the signature algorithm, e.g. MBEDTLS_MD_SHA256 */
     mbedtls_pk_type_t MBEDTLS_PRIVATE(sig_pk);       /**< Internal representation of the Public Key algorithm of the signature algorithm, e.g. MBEDTLS_PK_RSA */
diff --git a/library/ssl_ticket.c b/library/ssl_ticket.c
index bce9a1cd7..e998111d9 100644
--- a/library/ssl_ticket.c
+++ b/library/ssl_ticket.c
@@ -138,16 +138,14 @@ int mbedtls_ssl_ticket_setup( mbedtls_ssl_ticket_context *ctx,
     ctx->ticket_lifetime = lifetime;
 
     cipher_info = mbedtls_cipher_info_from_type( cipher);
-    if( cipher_info == NULL )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
 
-    if( cipher_info->mode != MBEDTLS_MODE_GCM &&
-        cipher_info->mode != MBEDTLS_MODE_CCM )
+    if( mbedtls_cipher_info_get_mode( cipher_info ) != MBEDTLS_MODE_GCM &&
+        mbedtls_cipher_info_get_mode( cipher_info ) != MBEDTLS_MODE_CCM )
     {
         return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
     }
 
-    if( cipher_info->key_bitlen > 8 * MAX_KEY_BYTES )
+    if( mbedtls_cipher_info_get_key_bitlen( cipher_info ) > 8 * MAX_KEY_BYTES )
         return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
 
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
diff --git a/library/ssl_tls.c b/library/ssl_tls.c
index 21a058dd5..f33f106ce 100644
--- a/library/ssl_tls.c
+++ b/library/ssl_tls.c
@@ -689,7 +689,7 @@ static int ssl_tls12_populate_transform( mbedtls_ssl_transform *transform,
     unsigned char *mac_dec;
     size_t mac_key_len = 0;
     size_t iv_copy_len;
-    unsigned keylen;
+    size_t keylen;
     const mbedtls_ssl_ciphersuite_t *ciphersuite_info;
     const mbedtls_cipher_info_t *cipher_info;
     const mbedtls_md_info_t *md_info;
@@ -789,14 +789,14 @@ static int ssl_tls12_populate_transform( mbedtls_ssl_transform *transform,
      * Determine the appropriate key, IV and MAC length.
      */
 
-    keylen = cipher_info->key_bitlen / 8;
+    keylen = mbedtls_cipher_info_get_key_bitlen( cipher_info ) / 8;
 
 #if defined(MBEDTLS_GCM_C) ||                           \
     defined(MBEDTLS_CCM_C) ||                           \
     defined(MBEDTLS_CHACHAPOLY_C)
-    if( cipher_info->mode == MBEDTLS_MODE_GCM ||
-        cipher_info->mode == MBEDTLS_MODE_CCM ||
-        cipher_info->mode == MBEDTLS_MODE_CHACHAPOLY )
+    if( mbedtls_cipher_info_get_mode( cipher_info ) == MBEDTLS_MODE_GCM ||
+        mbedtls_cipher_info_get_mode( cipher_info ) == MBEDTLS_MODE_CCM ||
+        mbedtls_cipher_info_get_mode( cipher_info ) == MBEDTLS_MODE_CHACHAPOLY )
     {
         size_t explicit_ivlen;
 
@@ -814,7 +814,7 @@ static int ssl_tls12_populate_transform( mbedtls_ssl_transform *transform,
          *   sequence number).
          */
         transform->ivlen = 12;
-        if( cipher_info->mode == MBEDTLS_MODE_CHACHAPOLY )
+        if( mbedtls_cipher_info_get_mode( cipher_info ) == MBEDTLS_MODE_CHACHAPOLY )
             transform->fixed_ivlen = 12;
         else
             transform->fixed_ivlen = 4;
@@ -826,8 +826,8 @@ static int ssl_tls12_populate_transform( mbedtls_ssl_transform *transform,
     else
 #endif /* MBEDTLS_GCM_C || MBEDTLS_CCM_C || MBEDTLS_CHACHAPOLY_C */
 #if defined(MBEDTLS_SSL_SOME_SUITES_USE_MAC)
-    if( cipher_info->mode == MBEDTLS_MODE_STREAM ||
-        cipher_info->mode == MBEDTLS_MODE_CBC )
+    if( mbedtls_cipher_info_get_mode( cipher_info ) == MBEDTLS_MODE_STREAM ||
+        mbedtls_cipher_info_get_mode( cipher_info ) == MBEDTLS_MODE_CBC )
     {
         /* Initialize HMAC contexts */
         if( ( ret = mbedtls_md_setup( &transform->md_ctx_enc, md_info, 1 ) ) != 0 ||
@@ -845,7 +845,7 @@ static int ssl_tls12_populate_transform( mbedtls_ssl_transform *transform,
         transform->ivlen = cipher_info->iv_size;
 
         /* Minimum length */
-        if( cipher_info->mode == MBEDTLS_MODE_STREAM )
+        if( mbedtls_cipher_info_get_mode( cipher_info ) == MBEDTLS_MODE_STREAM )
             transform->minlen = transform->maclen;
         else
         {
@@ -1060,7 +1060,7 @@ static int ssl_tls12_populate_transform( mbedtls_ssl_transform *transform,
     }
 
     if( ( ret = mbedtls_cipher_setkey( &transform->cipher_ctx_enc, key1,
-                               cipher_info->key_bitlen,
+                               (int) mbedtls_cipher_info_get_key_bitlen( cipher_info ),
                                MBEDTLS_ENCRYPT ) ) != 0 )
     {
         MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_cipher_setkey", ret );
@@ -1068,7 +1068,7 @@ static int ssl_tls12_populate_transform( mbedtls_ssl_transform *transform,
     }
 
     if( ( ret = mbedtls_cipher_setkey( &transform->cipher_ctx_dec, key2,
-                               cipher_info->key_bitlen,
+                               (int) mbedtls_cipher_info_get_key_bitlen( cipher_info ),
                                MBEDTLS_DECRYPT ) ) != 0 )
     {
         MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_cipher_setkey", ret );
@@ -1076,7 +1076,7 @@ static int ssl_tls12_populate_transform( mbedtls_ssl_transform *transform,
     }
 
 #if defined(MBEDTLS_CIPHER_MODE_CBC)
-    if( cipher_info->mode == MBEDTLS_MODE_CBC )
+    if( mbedtls_cipher_info_get_mode( cipher_info ) == MBEDTLS_MODE_CBC )
     {
         if( ( ret = mbedtls_cipher_set_padding_mode( &transform->cipher_ctx_enc,
                                              MBEDTLS_PADDING_NONE ) ) != 0 )
diff --git a/programs/aes/crypt_and_hash.c b/programs/aes/crypt_and_hash.c
index a8026a335..5ed2ece70 100644
--- a/programs/aes/crypt_and_hash.c
+++ b/programs/aes/crypt_and_hash.c
@@ -124,7 +124,7 @@ int main( int argc, char *argv[] )
         while( *list )
         {
             cipher_info = mbedtls_cipher_info_from_type( *list );
-            mbedtls_printf( "  %s\n", cipher_info->MBEDTLS_PRIVATE(name) );
+            mbedtls_printf( "  %s\n", mbedtls_cipher_info_get_name( cipher_info ) );
             list++;
         }
 
@@ -309,7 +309,9 @@ int main( int argc, char *argv[] )
 
         }
 
-        if( mbedtls_cipher_setkey( &cipher_ctx, digest, cipher_info->MBEDTLS_PRIVATE(key_bitlen),
+        if( mbedtls_cipher_setkey( &cipher_ctx,
+                                   digest,
+                                   (int) mbedtls_cipher_info_get_key_bitlen( cipher_info ),
                            MBEDTLS_ENCRYPT ) != 0 )
         {
             mbedtls_fprintf( stderr, "mbedtls_cipher_setkey() returned error\n");
@@ -408,7 +410,7 @@ int main( int argc, char *argv[] )
         /*
          * Check the file size.
          */
-        if( cipher_info->MBEDTLS_PRIVATE(mode) != MBEDTLS_MODE_GCM &&
+        if( mbedtls_cipher_info_get_mode( cipher_info ) != MBEDTLS_MODE_GCM &&
             ( ( filesize - mbedtls_md_get_size( md_info ) ) %
                 mbedtls_cipher_get_block_size( &cipher_ctx ) ) != 0 )
         {
@@ -448,7 +450,9 @@ int main( int argc, char *argv[] )
             mbedtls_md_finish( &md_ctx, digest );
         }
 
-        if( mbedtls_cipher_setkey( &cipher_ctx, digest, cipher_info->MBEDTLS_PRIVATE(key_bitlen),
+        if( mbedtls_cipher_setkey( &cipher_ctx,
+                                   digest,
+                                   (int) mbedtls_cipher_info_get_key_bitlen( cipher_info ),
                            MBEDTLS_DECRYPT ) != 0 )
         {
             mbedtls_fprintf( stderr, "mbedtls_cipher_setkey() returned error\n" );
diff --git a/programs/pkey/ecdsa.c b/programs/pkey/ecdsa.c
index 6b6e9517d..550a230e8 100644
--- a/programs/pkey/ecdsa.c
+++ b/programs/pkey/ecdsa.c
@@ -51,7 +51,7 @@
 #define ECPARAMS    MBEDTLS_ECP_DP_SECP192R1
 
 #if !defined(ECPARAMS)
-#define ECPARAMS    mbedtls_ecp_curve_list()->MBEDTLS_PRIVATE(grp_id)
+#define ECPARAMS    mbedtls_ecp_curve_list()->grp_id
 #endif
 
 #if !defined(MBEDTLS_ECDSA_C) || !defined(MBEDTLS_SHA256_C) || \
diff --git a/programs/pkey/gen_key.c b/programs/pkey/gen_key.c
index 4043dfa6e..7535eee3f 100644
--- a/programs/pkey/gen_key.c
+++ b/programs/pkey/gen_key.c
@@ -86,7 +86,7 @@ int dev_random_entropy_poll( void *data, unsigned char *output,
 #endif
 
 #if defined(MBEDTLS_ECP_C)
-#define DFL_EC_CURVE            mbedtls_ecp_curve_list()->MBEDTLS_PRIVATE(grp_id)
+#define DFL_EC_CURVE            mbedtls_ecp_curve_list()->grp_id
 #else
 #define DFL_EC_CURVE            0
 #endif
@@ -219,9 +219,9 @@ int main( int argc, char *argv[] )
 #if defined(MBEDTLS_ECP_C)
         mbedtls_printf( " available ec_curve values:\n" );
         curve_info = mbedtls_ecp_curve_list();
-        mbedtls_printf( "    %s (default)\n", curve_info->MBEDTLS_PRIVATE(name) );
-        while( ( ++curve_info )->MBEDTLS_PRIVATE(name) != NULL )
-            mbedtls_printf( "    %s\n", curve_info->MBEDTLS_PRIVATE(name) );
+        mbedtls_printf( "    %s (default)\n", curve_info->name );
+        while( ( ++curve_info )->name != NULL )
+            mbedtls_printf( "    %s\n", curve_info->name );
 #endif /* MBEDTLS_ECP_C */
         goto exit;
     }
@@ -270,7 +270,7 @@ int main( int argc, char *argv[] )
         {
             if( ( curve_info = mbedtls_ecp_curve_info_from_name( q ) ) == NULL )
                 goto usage;
-            opt.ec_curve = curve_info->MBEDTLS_PRIVATE(grp_id);
+            opt.ec_curve = curve_info->grp_id;
         }
 #endif
         else if( strcmp( p, "filename" ) == 0 )
@@ -391,7 +391,7 @@ int main( int argc, char *argv[] )
     {
         mbedtls_ecp_keypair *ecp = mbedtls_pk_ec( key );
         mbedtls_printf( "curve: %s\n",
-                mbedtls_ecp_curve_info_from_grp_id( ecp->MBEDTLS_PRIVATE(grp).id )->MBEDTLS_PRIVATE(name) );
+                mbedtls_ecp_curve_info_from_grp_id( ecp->MBEDTLS_PRIVATE(grp).id )->name );
         mbedtls_mpi_write_file( "X_Q:   ", &ecp->MBEDTLS_PRIVATE(Q).MBEDTLS_PRIVATE(X), 16, NULL );
         mbedtls_mpi_write_file( "Y_Q:   ", &ecp->MBEDTLS_PRIVATE(Q).MBEDTLS_PRIVATE(Y), 16, NULL );
         mbedtls_mpi_write_file( "D:     ", &ecp->MBEDTLS_PRIVATE(d)  , 16, NULL );
diff --git a/programs/ssl/dtls_server.c b/programs/ssl/dtls_server.c
index f2570490f..5d1cccbe6 100644
--- a/programs/ssl/dtls_server.c
+++ b/programs/ssl/dtls_server.c
@@ -226,7 +226,7 @@ int main( void )
                                    mbedtls_ssl_cache_set );
 #endif
 
-    mbedtls_ssl_conf_ca_chain( &conf, srvcert.MBEDTLS_PRIVATE(next), NULL );
+    mbedtls_ssl_conf_ca_chain( &conf, srvcert.next, NULL );
    if( ( ret = mbedtls_ssl_conf_own_cert( &conf, &srvcert, &pkey ) ) != 0 )
     {
         printf( " failed\n  ! mbedtls_ssl_conf_own_cert returned %d\n\n", ret );
diff --git a/programs/ssl/mini_client.c b/programs/ssl/mini_client.c
index 1e0bef6b1..97bfe6806 100644
--- a/programs/ssl/mini_client.c
+++ b/programs/ssl/mini_client.c
@@ -246,13 +246,13 @@ int main( void )
     addr.sin_addr.s_addr = *((char *) &ret) == ret ? ADDR_LE : ADDR_BE;
     ret = 0;
 
-    if( ( server_fd.MBEDTLS_PRIVATE(fd) = socket( AF_INET, SOCK_STREAM, 0 ) ) < 0 )
+    if( ( server_fd.fd = socket( AF_INET, SOCK_STREAM, 0 ) ) < 0 )
     {
         ret = socket_failed;
         goto exit;
     }
 
-    if( connect( server_fd.MBEDTLS_PRIVATE(fd),
+    if( connect( server_fd.fd,
                 (const struct sockaddr *) &addr, sizeof( addr ) ) < 0 )
     {
         ret = connect_failed;
diff --git a/programs/ssl/ssl_fork_server.c b/programs/ssl/ssl_fork_server.c
index 542a33460..694fc3b7a 100644
--- a/programs/ssl/ssl_fork_server.c
+++ b/programs/ssl/ssl_fork_server.c
@@ -190,7 +190,7 @@ int main( void )
     mbedtls_ssl_conf_rng( &conf, mbedtls_ctr_drbg_random, &ctr_drbg );
     mbedtls_ssl_conf_dbg( &conf, my_debug, stdout );
 
-    mbedtls_ssl_conf_ca_chain( &conf, srvcert.MBEDTLS_PRIVATE(next), NULL );
+    mbedtls_ssl_conf_ca_chain( &conf, srvcert.next, NULL );
     if( ( ret = mbedtls_ssl_conf_own_cert( &conf, &srvcert, &pkey ) ) != 0 )
     {
         mbedtls_printf( " failed!  mbedtls_ssl_conf_own_cert returned %d\n\n", ret );
diff --git a/programs/ssl/ssl_server.c b/programs/ssl/ssl_server.c
index ace657ceb..95557fb05 100644
--- a/programs/ssl/ssl_server.c
+++ b/programs/ssl/ssl_server.c
@@ -212,7 +212,7 @@ int main( void )
                                    mbedtls_ssl_cache_set );
 #endif
 
-    mbedtls_ssl_conf_ca_chain( &conf, srvcert.MBEDTLS_PRIVATE(next), NULL );
+    mbedtls_ssl_conf_ca_chain( &conf, srvcert.next, NULL );
     if( ( ret = mbedtls_ssl_conf_own_cert( &conf, &srvcert, &pkey ) ) != 0 )
     {
         mbedtls_printf( " failed\n  ! mbedtls_ssl_conf_own_cert returned %d\n\n", ret );
diff --git a/programs/x509/cert_app.c b/programs/x509/cert_app.c
index aab15db2b..3d8f37b64 100644
--- a/programs/x509/cert_app.c
+++ b/programs/x509/cert_app.c
@@ -331,7 +331,7 @@ int main( int argc, char *argv[] )
 
             mbedtls_printf( "%s\n", buf );
 
-            cur = cur->MBEDTLS_PRIVATE(next);
+            cur = cur->next;
         }
 
         /*
diff --git a/programs/x509/cert_write.c b/programs/x509/cert_write.c
index 9a20d6341..763f8684f 100644
--- a/programs/x509/cert_write.c
+++ b/programs/x509/cert_write.c
@@ -514,7 +514,7 @@ int main( int argc, char *argv[] )
         }
 
         ret = mbedtls_x509_dn_gets( issuer_name, sizeof(issuer_name),
-                                 &issuer_crt.MBEDTLS_PRIVATE(subject) );
+                                 &issuer_crt.subject );
         if( ret < 0 )
         {
             mbedtls_strerror( ret, buf, 1024 );
@@ -548,7 +548,7 @@ int main( int argc, char *argv[] )
         }
 
         ret = mbedtls_x509_dn_gets( subject_name, sizeof(subject_name),
-                                 &csr.MBEDTLS_PRIVATE(subject) );
+                                 &csr.subject );
         if( ret < 0 )
         {
             mbedtls_strerror( ret, buf, 1024 );
@@ -558,7 +558,7 @@ int main( int argc, char *argv[] )
         }
 
         opt.subject_name = subject_name;
-        subject_key = &csr.MBEDTLS_PRIVATE(pk);
+        subject_key = &csr.pk;
 
         mbedtls_printf( " ok\n" );
     }
@@ -602,7 +602,7 @@ int main( int argc, char *argv[] )
     //
     if( strlen( opt.issuer_crt ) )
     {
-        if( mbedtls_pk_check_pair( &issuer_crt.MBEDTLS_PRIVATE(pk), issuer_key,
+        if( mbedtls_pk_check_pair( &issuer_crt.pk, issuer_key,
                                    mbedtls_ctr_drbg_random, &ctr_drbg ) != 0 )
         {
             mbedtls_printf( " failed\n  !  issuer_key does not match "
diff --git a/tests/suites/test_suite_cipher.function b/tests/suites/test_suite_cipher.function
index 674349f76..c809d9a28 100644
--- a/tests/suites/test_suite_cipher.function
+++ b/tests/suites/test_suite_cipher.function
@@ -13,6 +13,59 @@
 #define MBEDTLS_CIPHER_AUTH_CRYPT
 #endif
 
+/* Check the internal consistency of a cipher info structure, and
+ * check it against mbedtls_cipher_info_from_xxx(). */
+static int check_cipher_info( mbedtls_cipher_type_t type,
+                              const mbedtls_cipher_info_t *info )
+{
+    size_t key_bitlen;
+
+    TEST_ASSERT( info != NULL );
+    TEST_EQUAL( type, mbedtls_cipher_info_get_type( info ) );
+    TEST_EQUAL( type, info->type );
+    TEST_ASSERT( mbedtls_cipher_info_from_type( type ) == info );
+
+    TEST_EQUAL( info->mode, mbedtls_cipher_info_get_mode( info ) );
+
+    /* Insist that get_name() return the string from the structure and
+     * not a copy. A copy would have an unknown storage duration. */
+    TEST_ASSERT( mbedtls_cipher_info_get_name( info ) == info->name );
+    TEST_ASSERT( mbedtls_cipher_info_from_string( info->name ) == info );
+
+    key_bitlen = mbedtls_cipher_info_get_key_bitlen( info );
+    if( info->type == MBEDTLS_CIPHER_NULL )
+        TEST_ASSERT( key_bitlen == 0 );
+    else if( info->mode == MBEDTLS_MODE_XTS )
+    {
+        TEST_ASSERT( key_bitlen == 256 ||
+                     key_bitlen == 384 ||
+                     key_bitlen == 512 );
+    }
+    else if( ! strncmp( info->name, "DES-EDE3-", 9 ) )
+    {
+        TEST_ASSERT( key_bitlen == 192 );
+    }
+    else if( ! strncmp( info->name, "DES-EDE-", 8 ) )
+    {
+        TEST_ASSERT( key_bitlen == 128 );
+    }
+    else if( ! strncmp( info->name, "DES-", 4 ) )
+    {
+        TEST_ASSERT( key_bitlen == 64 );
+    }
+    else
+    {
+        TEST_ASSERT( key_bitlen == 128 ||
+                     key_bitlen == 192 ||
+                     key_bitlen == 256 );
+    }
+
+    return( 1 );
+
+exit:
+    return( 0 );
+}
+
 #if defined(MBEDTLS_CIPHER_AUTH_CRYPT)
 /* Helper for resetting key/direction
  *
@@ -81,7 +134,13 @@ void mbedtls_cipher_list(  )
     const int *cipher_type;
 
     for( cipher_type = mbedtls_cipher_list(); *cipher_type != 0; cipher_type++ )
-        TEST_ASSERT( mbedtls_cipher_info_from_type( *cipher_type ) != NULL );
+    {
+        const mbedtls_cipher_info_t *info =
+            mbedtls_cipher_info_from_type( *cipher_type );
+        mbedtls_test_set_step( *cipher_type );
+        if( ! check_cipher_info( *cipher_type, info ) )
+            goto exit;
+    }
 }
 /* END_CASE */
 
@@ -309,6 +368,8 @@ void enc_dec_buf( int cipher_id, char * cipher_string, int key_len,
     cipher_info = mbedtls_cipher_info_from_type( cipher_id );
     TEST_ASSERT( NULL != cipher_info );
     TEST_ASSERT( mbedtls_cipher_info_from_string( cipher_string ) == cipher_info );
+    TEST_ASSERT( strcmp( mbedtls_cipher_info_get_name( cipher_info ),
+                         cipher_string ) == 0 );
 
     /* Initialise enc and dec contexts */
     TEST_ASSERT( 0 == mbedtls_cipher_setup( &ctx_dec, cipher_info ) );