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fix block size depending on algorithm

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mohammad1603 2018-06-04 14:33:00 +03:00 committed by itayzafrir
parent 0317945a37
commit 96910d807e
1 changed files with 7 additions and 2 deletions
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9
library/psa_crypto.c
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@ -1507,8 +1507,7 @@ psa_status_t psa_aead_encrypt( psa_key_slot_t key,
//TODO: check key policy
if ( !( ( key_type & PSA_KEY_TYPE_CATEGORY_MASK ) == PSA_KEY_TYPE_CATEGORY_SYMMETRIC
&& PSA_BLOCK_CIPHER_BLOCK_SIZE( key_type ) == cipher_info->block_size ) )
if ( ( key_type & PSA_KEY_TYPE_CATEGORY_MASK ) != PSA_KEY_TYPE_CATEGORY_SYMMETRIC )
return( PSA_ERROR_INVALID_ARGUMENT );
if( alg == PSA_ALG_GCM )
@ -1516,6 +1515,9 @@ psa_status_t psa_aead_encrypt( psa_key_slot_t key,
mbedtls_gcm_context gcm;
tag_length = 16;
if( PSA_BLOCK_CIPHER_BLOCK_SIZE( key_type ) != 16 )
return( PSA_ERROR_INVALID_ARGUMENT );
//make sure we have place to hold the tag in the ciphertext buffer
if( ciphertext_size < ( plaintext_length + tag_length ) )
return( PSA_ERROR_INVALID_ARGUMENT );
@ -1544,6 +1546,9 @@ psa_status_t psa_aead_encrypt( psa_key_slot_t key,
mbedtls_ccm_context ccm;
tag_length = 16;
if( PSA_BLOCK_CIPHER_BLOCK_SIZE( key_type ) != 16 )
return( PSA_ERROR_INVALID_ARGUMENT );
if( nonce_length < 7 || nonce_length > 13 )
return( PSA_ERROR_INVALID_ARGUMENT );