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Fix psa_generator_import_key for DES

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In psa_generator_import_key, if generating a DES or 3DES key, set the
parity bits.

Add tests for deriving a DES key. Also test deriving an AES key while
I'm at it.
This commit is contained in:
Gilles Peskine 2018-07-19 17:05:42 +02:00 committed by itayzafrir
parent 9fb0e01177
commit 08542d8037
2 changed files with 38 additions and 7 deletions
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25
library/psa_crypto.c
View file

@ -3142,6 +3142,18 @@ exit:
return( status ); return( status );
} }
#if defined(MBEDTLS_DES_C)
static void psa_des_set_key_parity( uint8_t *data, size_t data_size )
{
if( data_size >= 8 )
mbedtls_des_key_set_parity( data );
if( data_size >= 16 )
mbedtls_des_key_set_parity( data + 8 );
if( data_size >= 24 )
mbedtls_des_key_set_parity( data + 16 );
}
#endif /* MBEDTLS_DES_C */
psa_status_t psa_generator_import_key( psa_key_slot_t key, psa_status_t psa_generator_import_key( psa_key_slot_t key,
psa_key_type_t type, psa_key_type_t type,
size_t bits, size_t bits,
@ -3162,6 +3174,10 @@ psa_status_t psa_generator_import_key( psa_key_slot_t key,
status = psa_generator_read( generator, data, bytes ); status = psa_generator_read( generator, data, bytes );
if( status != PSA_SUCCESS ) if( status != PSA_SUCCESS )
goto exit; goto exit;
#if defined(MBEDTLS_DES_C)
if( type == PSA_KEY_TYPE_DES )
psa_des_set_key_parity( data, bytes );
#endif /* MBEDTLS_DES_C */
status = psa_import_key( key, type, data, bytes ); status = psa_import_key( key, type, data, bytes );
exit: exit:
@ -3312,13 +3328,8 @@ psa_status_t psa_generate_key( psa_key_slot_t key,
} }
#if defined(MBEDTLS_DES_C) #if defined(MBEDTLS_DES_C)
if( type == PSA_KEY_TYPE_DES ) if( type == PSA_KEY_TYPE_DES )
{ psa_des_set_key_parity( slot->data.raw.data,
mbedtls_des_key_set_parity( slot->data.raw.data ); slot->data.raw.bytes );
if( slot->data.raw.bytes >= 16 )
mbedtls_des_key_set_parity( slot->data.raw.data + 8 );
if( slot->data.raw.bytes == 24 )
mbedtls_des_key_set_parity( slot->data.raw.data + 16 );
}
#endif /* MBEDTLS_DES_C */ #endif /* MBEDTLS_DES_C */
} }
else else

20
tests/suites/test_suite_psa_crypto.data
View file

@ -861,6 +861,26 @@ PSA key derivation: HKDF SHA-256, read maximum capacity
depends_on:MBEDTLS_MD_C:MBEDTLS_SHA256_C depends_on:MBEDTLS_MD_C:MBEDTLS_SHA256_C
derive_full:PSA_ALG_HKDF(PSA_ALG_SHA_256):"0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b":"000102030405060708090a0b0c":"f0f1f2f3f4f5f6f7f8f9":255 * 32 derive_full:PSA_ALG_HKDF(PSA_ALG_SHA_256):"0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b":"000102030405060708090a0b0c":"f0f1f2f3f4f5f6f7f8f9":255 * 32
PSA key derivation: HKDF SHA-256, exercise AES128-CTR
depends_on:MBEDTLS_MD_C:MBEDTLS_SHA256_C:MBEDTLS_AES_C:MBEDTLS_CIPHER_MODE_CTR
derive_key_exercise:PSA_ALG_HKDF(PSA_ALG_SHA_256):"0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b":"000102030405060708090a0b0c":"f0f1f2f3f4f5f6f7f8f9":PSA_KEY_TYPE_AES:128:PSA_KEY_USAGE_ENCRYPT:PSA_ALG_CTR
PSA key derivation: HKDF SHA-256, exercise AES256-CTR
depends_on:MBEDTLS_MD_C:MBEDTLS_SHA256_C:MBEDTLS_AES_C:MBEDTLS_CIPHER_MODE_CTR
derive_key_exercise:PSA_ALG_HKDF(PSA_ALG_SHA_256):"0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b":"000102030405060708090a0b0c":"f0f1f2f3f4f5f6f7f8f9":PSA_KEY_TYPE_AES:256:PSA_KEY_USAGE_ENCRYPT:PSA_ALG_CTR
PSA key derivation: HKDF SHA-256, exercise DES-CBC
depends_on:MBEDTLS_MD_C:MBEDTLS_SHA256_C:MBEDTLS_DES_C:MBEDTLS_CIPHER_MODE_CBC
derive_key_exercise:PSA_ALG_HKDF(PSA_ALG_SHA_256):"0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b":"000102030405060708090a0b0c":"f0f1f2f3f4f5f6f7f8f9":PSA_KEY_TYPE_DES:64:PSA_KEY_USAGE_ENCRYPT:PSA_ALG_CBC_BASE | PSA_ALG_BLOCK_CIPHER_PAD_PKCS7
PSA key derivation: HKDF SHA-256, exercise 2-key 3DES-CBC
depends_on:MBEDTLS_MD_C:MBEDTLS_SHA256_C:MBEDTLS_DES_C:MBEDTLS_CIPHER_MODE_CBC
derive_key_exercise:PSA_ALG_HKDF(PSA_ALG_SHA_256):"0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b":"000102030405060708090a0b0c":"f0f1f2f3f4f5f6f7f8f9":PSA_KEY_TYPE_DES:128:PSA_KEY_USAGE_ENCRYPT:PSA_ALG_CBC_BASE | PSA_ALG_BLOCK_CIPHER_PAD_PKCS7
PSA key derivation: HKDF SHA-256, exercise 3-key 3DES-CBC
depends_on:MBEDTLS_MD_C:MBEDTLS_SHA256_C:MBEDTLS_DES_C:MBEDTLS_CIPHER_MODE_CBC
derive_key_exercise:PSA_ALG_HKDF(PSA_ALG_SHA_256):"0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b":"000102030405060708090a0b0c":"f0f1f2f3f4f5f6f7f8f9":PSA_KEY_TYPE_DES:192:PSA_KEY_USAGE_ENCRYPT:PSA_ALG_CBC_BASE | PSA_ALG_BLOCK_CIPHER_PAD_PKCS7
PSA key derivation: HKDF SHA-256, exercise HMAC-SHA-256 PSA key derivation: HKDF SHA-256, exercise HMAC-SHA-256
depends_on:MBEDTLS_MD_C:MBEDTLS_SHA256_C depends_on:MBEDTLS_MD_C:MBEDTLS_SHA256_C
derive_key_exercise:PSA_ALG_HKDF(PSA_ALG_SHA_256):"0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b":"000102030405060708090a0b0c":"f0f1f2f3f4f5f6f7f8f9":PSA_KEY_TYPE_HMAC:256:PSA_KEY_USAGE_SIGN:PSA_ALG_HMAC(PSA_ALG_SHA_256) derive_key_exercise:PSA_ALG_HKDF(PSA_ALG_SHA_256):"0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b":"000102030405060708090a0b0c":"f0f1f2f3f4f5f6f7f8f9":PSA_KEY_TYPE_HMAC:256:PSA_KEY_USAGE_SIGN:PSA_ALG_HMAC(PSA_ALG_SHA_256)