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pem: fix return values in pem_check_pkcs_padding()

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Return MBEDTLS_ERR_PEM_PASSWORD_MISMATCH instead of
MBEDTLS_ERR_PEM_BAD_INPUT_DATA in case of errors.
This commit also fix related failures in test pkparse and
pem test suites.

Signed-off-by: Valerio Setti <valerio.setti@nordicsemi.no>
This commit is contained in:
Valerio Setti 2024-02-19 15:08:49 +01:00
parent e10674d547
commit e88a1c5b85
3 changed files with 6 additions and 6 deletions
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4
library/pem.c
View file

@ -248,14 +248,14 @@ static int pem_check_pkcs_padding(unsigned char *input, size_t input_len, size_t
size_t i;
if (pad_len > input_len) {
return MBEDTLS_ERR_PEM_BAD_INPUT_DATA;
return MBEDTLS_ERR_PEM_PASSWORD_MISMATCH;
}
*data_len = input_len - pad_len;
for (i = *data_len; i < input_len; i++) {
if (input[i] != pad_len) {
return MBEDTLS_ERR_PEM_BAD_INPUT_DATA;
return MBEDTLS_ERR_PEM_PASSWORD_MISMATCH;
}
}

6
tests/suites/test_suite_pem.data
View file

@ -69,18 +69,18 @@ mbedtls_pem_read_buffer:"-----BEGIN EC PRIVATE KEY-----":"-----END EC PRIVATE KE
# echo -n -e "\x68\x65\x6c\x6c\x6f\x20\x77\x6f\x72\x6c\x64\x01\x02\x03\x04\x05" | openssl aes-128-cbc -e -base64 -p -K "bbb0ddff1b944b3cc68eaaeb7ac20099" -iv "3132333435363738" -nopad
PEM read (AES-128-CBC, invalid padding data)
depends_on:MBEDTLS_MD_CAN_MD5:MBEDTLS_AES_C:MBEDTLS_CIPHER_MODE_CBC
mbedtls_pem_read_buffer:"-----BEGIN EC PRIVATE KEY-----":"-----END EC PRIVATE KEY-----":"-----BEGIN EC PRIVATE KEY-----\nProc-Type\: 4,ENCRYPTED\nDEK-Info\: AES-128-CBC,31323334353637380000000000000000\n\n333hxynfxEdXrSHQfIabxQ==\n-----END EC PRIVATE KEY-----":"password":MBEDTLS_ERR_PEM_BAD_INPUT_DATA:""
mbedtls_pem_read_buffer:"-----BEGIN EC PRIVATE KEY-----":"-----END EC PRIVATE KEY-----":"-----BEGIN EC PRIVATE KEY-----\nProc-Type\: 4,ENCRYPTED\nDEK-Info\: AES-128-CBC,31323334353637380000000000000000\n\n333hxynfxEdXrSHQfIabxQ==\n-----END EC PRIVATE KEY-----":"password":MBEDTLS_ERR_PEM_PASSWORD_MISMATCH:""
# Padding data (0x11) is larger than AES block size (16).
# Generated with:
# echo -n -e "\x68\x65\x6c\x6c\x6f\x20\x77\x6f\x72\x6c\x64\x11\x11\x11\x11\x11" | openssl aes-128-cbc -e -base64 -p -K "bbb0ddff1b944b3cc68eaaeb7ac20099" -iv "3132333435363738" -nopad
PEM read (AES-128-CBC, padding data is larger than AES block length)
depends_on:MBEDTLS_MD_CAN_MD5:MBEDTLS_AES_C:MBEDTLS_CIPHER_MODE_CBC
mbedtls_pem_read_buffer:"-----BEGIN EC PRIVATE KEY-----":"-----END EC PRIVATE KEY-----":"-----BEGIN EC PRIVATE KEY-----\nProc-Type\: 4,ENCRYPTED\nDEK-Info\: AES-128-CBC,31323334353637380000000000000000\n\n5wA/XVXHuMsQAAOGFQmK0g==\n-----END EC PRIVATE KEY-----":"password":MBEDTLS_ERR_PEM_BAD_INPUT_DATA:""
mbedtls_pem_read_buffer:"-----BEGIN EC PRIVATE KEY-----":"-----END EC PRIVATE KEY-----":"-----BEGIN EC PRIVATE KEY-----\nProc-Type\: 4,ENCRYPTED\nDEK-Info\: AES-128-CBC,31323334353637380000000000000000\n\n5wA/XVXHuMsQAAOGFQmK0g==\n-----END EC PRIVATE KEY-----":"password":MBEDTLS_ERR_PEM_PASSWORD_MISMATCH:""
# Padding data (0x9) is larger than DES block size (8).
# Generated with:
# echo -n -e "\x68\x65\x6c\x6c\x6f\x09\x09\x09" | openssl des-cbc -e -base64 -p -K "bbb0ddff1b944b3cc68eaaeb7ac20099" -iv "3132333435363738" -nopad
PEM read (DES-CBC, padding data is larger than DES block length)
depends_on:MBEDTLS_MD_CAN_MD5:MBEDTLS_DES_C:MBEDTLS_CIPHER_MODE_CBC
mbedtls_pem_read_buffer:"-----BEGIN EC PRIVATE KEY-----":"-----END EC PRIVATE KEY-----":"-----BEGIN EC PRIVATE KEY-----\nProc-Type\: 4,ENCRYPTED\nDEK-Info\: DES-CBC,3132333435363738\n\n6a+B2WineBM=\n-----END EC PRIVATE KEY-----":"password":MBEDTLS_ERR_PEM_BAD_INPUT_DATA:""
mbedtls_pem_read_buffer:"-----BEGIN EC PRIVATE KEY-----":"-----END EC PRIVATE KEY-----":"-----BEGIN EC PRIVATE KEY-----\nProc-Type\: 4,ENCRYPTED\nDEK-Info\: DES-CBC,3132333435363738\n\n6a+B2WineBM=\n-----END EC PRIVATE KEY-----":"password":MBEDTLS_ERR_PEM_PASSWORD_MISMATCH:""

2
tests/suites/test_suite_pkparse.data
View file

@ -8,7 +8,7 @@ pk_parse_keyfile_rsa:"data_files/test-ca.key":"PolarSSLTest":0
Parse RSA Key #3 (Wrong password)
depends_on:MBEDTLS_MD_CAN_MD5:MBEDTLS_PEM_PARSE_C:MBEDTLS_CIPHER_MODE_CBC:MBEDTLS_AES_C
pk_parse_keyfile_rsa:"data_files/test-ca.key":"PolarSSLWRONG":MBEDTLS_ERR_PEM_BAD_INPUT_DATA
pk_parse_keyfile_rsa:"data_files/test-ca.key":"PolarSSLWRONG":MBEDTLS_ERR_PK_PASSWORD_MISMATCH
Parse RSA Key #4 (DES Encrypted)
depends_on:MBEDTLS_MD_CAN_MD5:MBEDTLS_DES_C:MBEDTLS_PEM_PARSE_C:MBEDTLS_CIPHER_MODE_CBC