Implement ChaCha20 and ChaCha20-Poly1305

Smoke tests: test data for ChaCha20 calculated with PyCryptodome; test
vector from RFC 7539 for ChaCha20-Poly1305.
This commit is contained in:
Gilles Peskine 2019-05-06 15:25:00 +02:00
parent 3e79c8ecfd
commit 26869f2d9b
2 changed files with 123 additions and 0 deletions

View File

@ -51,6 +51,8 @@
#include "mbedtls/bignum.h"
#include "mbedtls/blowfish.h"
#include "mbedtls/camellia.h"
#include "mbedtls/chacha20.h"
#include "mbedtls/chachapoly.h"
#include "mbedtls/cipher.h"
#include "mbedtls/ccm.h"
#include "mbedtls/cmac.h"
@ -179,6 +181,14 @@ static psa_status_t mbedtls_to_psa_error( int ret )
case MBEDTLS_ERR_CCM_HW_ACCEL_FAILED:
return( PSA_ERROR_HARDWARE_FAILURE );
case MBEDTLS_ERR_CHACHA20_BAD_INPUT_DATA:
return( PSA_ERROR_INVALID_ARGUMENT );
case MBEDTLS_ERR_CHACHAPOLY_BAD_STATE:
return( PSA_ERROR_BAD_STATE );
case MBEDTLS_ERR_CHACHAPOLY_AUTH_FAILED:
return( PSA_ERROR_INVALID_SIGNATURE );
case MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE:
return( PSA_ERROR_NOT_SUPPORTED );
case MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA:
@ -465,6 +475,12 @@ static psa_status_t prepare_raw_data_slot( psa_key_type_t type,
if( bits < 8 || bits > 2048 )
return( PSA_ERROR_INVALID_ARGUMENT );
break;
#endif
#if defined(MBEDTLS_CHACHA20_C)
case PSA_KEY_TYPE_CHACHA20:
if( bits != 256 )
return( PSA_ERROR_INVALID_ARGUMENT );
break;
#endif
default:
return( PSA_ERROR_NOT_SUPPORTED );
@ -2026,6 +2042,7 @@ static const mbedtls_cipher_info_t *mbedtls_cipher_info_from_psa(
switch( alg )
{
case PSA_ALG_ARC4:
case PSA_ALG_CHACHA20:
mode = MBEDTLS_MODE_STREAM;
break;
case PSA_ALG_CTR:
@ -2049,6 +2066,9 @@ static const mbedtls_cipher_info_t *mbedtls_cipher_info_from_psa(
case PSA_ALG_AEAD_WITH_TAG_LENGTH( PSA_ALG_GCM, 0 ):
mode = MBEDTLS_MODE_GCM;
break;
case PSA_ALG_AEAD_WITH_TAG_LENGTH( PSA_ALG_CHACHA20_POLY1305, 0 ):
mode = MBEDTLS_MODE_CHACHAPOLY;
break;
default:
return( NULL );
}
@ -2084,6 +2104,9 @@ static const mbedtls_cipher_info_t *mbedtls_cipher_info_from_psa(
case PSA_KEY_TYPE_ARC4:
cipher_id_tmp = MBEDTLS_CIPHER_ID_ARC4;
break;
case PSA_KEY_TYPE_CHACHA20:
cipher_id_tmp = MBEDTLS_CIPHER_ID_CHACHA20;
break;
default:
return( NULL );
}
@ -3318,6 +3341,11 @@ static psa_status_t psa_cipher_setup( psa_cipher_operation_t *operation,
{
operation->iv_size = PSA_BLOCK_CIPHER_BLOCK_SIZE( slot->type );
}
#if defined(MBEDTLS_CHACHA20_C)
else
if( alg == PSA_ALG_CHACHA20 )
operation->iv_size = 12;
#endif
exit:
if( status == 0 )
@ -3631,6 +3659,9 @@ typedef struct
#if defined(MBEDTLS_GCM_C)
mbedtls_gcm_context gcm;
#endif /* MBEDTLS_GCM_C */
#if defined(MBEDTLS_CHACHAPOLY_C)
mbedtls_chachapoly_context chachapoly;
#endif /* MBEDTLS_CHACHAPOLY_C */
} ctx;
psa_algorithm_t core_alg;
uint8_t full_tag_length;
@ -3715,6 +3746,22 @@ static psa_status_t psa_aead_setup( aead_operation_t *operation,
break;
#endif /* MBEDTLS_GCM_C */
#if defined(MBEDTLS_CHACHAPOLY_C)
case PSA_ALG_AEAD_WITH_TAG_LENGTH( PSA_ALG_CHACHA20_POLY1305, 0 ):
operation->core_alg = PSA_ALG_CHACHA20_POLY1305;
operation->full_tag_length = 16;
/* We only support the default tag length. */
if( alg != PSA_ALG_CHACHA20_POLY1305 )
return( PSA_ERROR_NOT_SUPPORTED );
mbedtls_chachapoly_init( &operation->ctx.chachapoly );
status = mbedtls_to_psa_error(
mbedtls_chachapoly_setkey( &operation->ctx.chachapoly,
operation->slot->data.raw.data ) );
if( status != 0 )
goto cleanup;
break;
#endif /* MBEDTLS_CHACHAPOLY_C */
default:
return( PSA_ERROR_NOT_SUPPORTED );
}
@ -3792,6 +3839,26 @@ psa_status_t psa_aead_encrypt( psa_key_handle_t handle,
}
else
#endif /* MBEDTLS_CCM_C */
#if defined(MBEDTLS_CHACHAPOLY_C)
if( operation.core_alg == PSA_ALG_CHACHA20_POLY1305 )
{
if( nonce_length != 12 || operation.tag_length != 16 )
{
status = PSA_ERROR_NOT_SUPPORTED;
goto exit;
}
status = mbedtls_to_psa_error(
mbedtls_chachapoly_encrypt_and_tag( &operation.ctx.chachapoly,
plaintext_length,
nonce,
additional_data,
additional_data_length,
plaintext,
ciphertext,
tag ) );
}
else
#endif /* MBEDTLS_CHACHAPOLY_C */
{
return( PSA_ERROR_NOT_SUPPORTED );
}
@ -3883,6 +3950,26 @@ psa_status_t psa_aead_decrypt( psa_key_handle_t handle,
}
else
#endif /* MBEDTLS_CCM_C */
#if defined(MBEDTLS_CHACHAPOLY_C)
if( operation.core_alg == PSA_ALG_CHACHA20_POLY1305 )
{
if( nonce_length != 12 || operation.tag_length != 16 )
{
status = PSA_ERROR_NOT_SUPPORTED;
goto exit;
}
status = mbedtls_to_psa_error(
mbedtls_chachapoly_auth_decrypt( &operation.ctx.chachapoly,
ciphertext_length - operation.tag_length,
nonce,
additional_data,
additional_data_length,
tag,
ciphertext,
plaintext ) );
}
else
#endif /* MBEDTLS_CHACHAPOLY_C */
{
return( PSA_ERROR_NOT_SUPPORTED );
}

View File

@ -1100,6 +1100,26 @@ PSA symmetric encrypt/decrypt multipart: AES-CBC-PKCS#7 padding, 4+12 bytes
depends_on:MBEDTLS_AES_C:MBEDTLS_CIPHER_MODE_CBC:MBEDTLS_CIPHER_PADDING_PKCS7
cipher_verify_output_multipart:PSA_ALG_CBC_PKCS7:PSA_KEY_TYPE_AES:"2b7e151628aed2a6abf7158809cf4f3c":"a076ec9dfbe47d52afc357336f20743b":4
PSA symmetric encrypt: ChaCha20, K=0 N=0
depends_on:MBEDTLS_CHACHA20_C
cipher_encrypt:PSA_ALG_CHACHA20:PSA_KEY_TYPE_CHACHA20:"0000000000000000000000000000000000000000000000000000000000000000":"000000000000000000000000":"00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000":"76b8e0ada0f13d90405d6ae55386bd28bdd219b8a08ded1aa836efcc8b770dc7da41597c5157488d7724e03fb8d84a376a43b8f41518a11cc387b669b2ee6586":PSA_SUCCESS
PSA symmetric encrypt: ChaCha20, K=rand N=rand
depends_on:MBEDTLS_CHACHA20_C
cipher_encrypt:PSA_ALG_CHACHA20:PSA_KEY_TYPE_CHACHA20:"4bddc98c551a95395ef719557f813656b566bc45aac04eca3866324cc75489f2":"a170d9349d24955aa4501891":"00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000":"9ba7d8de0c6b579fc436e368619e09228070d23246c836d6c6b4c476af6f5eb2b78fbe809d03f7881e6af28cfe3746e8dcf1eb7f762fe7d003141f1539a6cec4":PSA_SUCCESS
PSA symmetric encryption multipart: ChaCha20, 14+50 bytes
depends_on:MBEDTLS_CHACHA20_C
cipher_encrypt_multipart:PSA_ALG_CHACHA20:PSA_KEY_TYPE_CHACHA20:"4bddc98c551a95395ef719557f813656b566bc45aac04eca3866324cc75489f2":"a170d9349d24955aa4501891":"00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000":14:14:50:"9ba7d8de0c6b579fc436e368619e09228070d23246c836d6c6b4c476af6f5eb2b78fbe809d03f7881e6af28cfe3746e8dcf1eb7f762fe7d003141f1539a6cec4"
PSA symmetric decrypt: ChaCha20, K=rand N=rand
depends_on:MBEDTLS_CHACHA20_C
cipher_decrypt:PSA_ALG_CHACHA20:PSA_KEY_TYPE_CHACHA20:"4bddc98c551a95395ef719557f813656b566bc45aac04eca3866324cc75489f2":"a170d9349d24955aa4501891":"00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000":"9ba7d8de0c6b579fc436e368619e09228070d23246c836d6c6b4c476af6f5eb2b78fbe809d03f7881e6af28cfe3746e8dcf1eb7f762fe7d003141f1539a6cec4":PSA_SUCCESS
PSA symmetric decryption multipart: ChaCha20, 14+50 bytes
depends_on:MBEDTLS_CHACHA20_C
cipher_decrypt_multipart:PSA_ALG_CHACHA20:PSA_KEY_TYPE_CHACHA20:"4bddc98c551a95395ef719557f813656b566bc45aac04eca3866324cc75489f2":"a170d9349d24955aa4501891":"00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000":14:14:50:"9ba7d8de0c6b579fc436e368619e09228070d23246c836d6c6b4c476af6f5eb2b78fbe809d03f7881e6af28cfe3746e8dcf1eb7f762fe7d003141f1539a6cec4"
PSA AEAD encrypt/decrypt: AES-CCM, 19 bytes #1
depends_on:MBEDTLS_AES_C:MBEDTLS_CCM_C
aead_encrypt_decrypt:PSA_KEY_TYPE_AES:"C0C1C2C3C4C5C6C7C8C9CACBCCCDCECF":PSA_ALG_CCM:"000102030405060708090A0B":"000102030405060708090A0B":"0C0D0E0F101112131415161718191A1B1C1D1E":PSA_SUCCESS
@ -1280,10 +1300,26 @@ PSA AEAD decrypt: AES-GCM, invalid tag length 18
depends_on:MBEDTLS_AES_C:MBEDTLS_GCM_C
aead_decrypt:PSA_KEY_TYPE_AES:"a0ec7b0052541d9e9c091fb7fc481409":PSA_ALG_AEAD_WITH_TAG_LENGTH( PSA_ALG_GCM, 18 ):"48c0906930561e0ab0ef4cd972":"40a27c1d1e23ea3dbe8056b2774861a4a201cce49f19997d19206d8c8a343951":"26c56961c035a7e452cce61bc6ee220d77b3f94d18fd10b6":"4535d12b4377928a7c0a61c9f825a48671ea05910748c8ef":PSA_ERROR_INVALID_ARGUMENT
PSA AEAD encrypt: ChaCha20-Poly1305 (RFC7539)
depends_on:MBEDTLS_CHACHAPOLY_C
aead_encrypt:PSA_KEY_TYPE_CHACHA20:"808182838485868788898a8b8c8d8e8f909192939495969798999a9b9c9d9e9f":PSA_ALG_CHACHA20_POLY1305:"070000004041424344454647":"50515253c0c1c2c3c4c5c6c7":"4c616469657320616e642047656e746c656d656e206f662074686520636c617373206f66202739393a204966204920636f756c64206f6666657220796f75206f6e6c79206f6e652074697020666f7220746865206675747572652c2073756e73637265656e20776f756c642062652069742e":"d31a8d34648e60db7b86afbc53ef7ec2a4aded51296e08fea9e2b5a736ee62d63dbea45e8ca9671282fafb69da92728b1a71de0a9e060b2905d6a5b67ecd3b3692ddbd7f2d778b8c9803aee328091b58fab324e4fad675945585808b4831d7bc3ff4def08e4b7a9de576d26586cec64b61161ae10b594f09e26a7e902ecbd0600691"
PSA AEAD decrypt: ChaCha20-Poly1305 (RFC7539, good tag)
depends_on:MBEDTLS_CHACHAPOLY_C
aead_decrypt:PSA_KEY_TYPE_CHACHA20:"808182838485868788898a8b8c8d8e8f909192939495969798999a9b9c9d9e9f":PSA_ALG_CHACHA20_POLY1305:"070000004041424344454647":"50515253c0c1c2c3c4c5c6c7":"d31a8d34648e60db7b86afbc53ef7ec2a4aded51296e08fea9e2b5a736ee62d63dbea45e8ca9671282fafb69da92728b1a71de0a9e060b2905d6a5b67ecd3b3692ddbd7f2d778b8c9803aee328091b58fab324e4fad675945585808b4831d7bc3ff4def08e4b7a9de576d26586cec64b61161ae10b594f09e26a7e902ecbd0600691":"4c616469657320616e642047656e746c656d656e206f662074686520636c617373206f66202739393a204966204920636f756c64206f6666657220796f75206f6e6c79206f6e652074697020666f7220746865206675747572652c2073756e73637265656e20776f756c642062652069742e":PSA_SUCCESS
PSA AEAD decrypt: ChaCha20-Poly1305 (RFC7539, bad tag)
depends_on:MBEDTLS_CHACHAPOLY_C
aead_decrypt:PSA_KEY_TYPE_CHACHA20:"808182838485868788898a8b8c8d8e8f909192939495969798999a9b9c9d9e9f":PSA_ALG_CHACHA20_POLY1305:"070000004041424344454647":"50515253c0c1c2c3c4c5c6c7":"d31a8d34648e60db7b86afbc53ef7ec2a4aded51296e08fea9e2b5a736ee62d63dbea45e8ca9671282fafb69da92728b1a71de0a9e060b2905d6a5b67ecd3b3692ddbd7f2d778b8c9803aee328091b58fab324e4fad675945585808b4831d7bc3ff4def08e4b7a9de576d26586cec64b61161ae10b594f09e26a7e902ecbd0600690":"4c616469657320616e642047656e746c656d656e206f662074686520636c617373206f66202739393a204966204920636f756c64206f6666657220796f75206f6e6c79206f6e652074697020666f7220746865206675747572652c2073756e73637265656e20776f756c642062652069742e":PSA_ERROR_INVALID_SIGNATURE
PSA AEAD encrypt/decrypt: invalid algorithm (CTR)
depends_on:MBEDTLS_AES_C:MBEDTLS_GCM_C
aead_encrypt_decrypt:PSA_KEY_TYPE_AES:"D7828D13B2B0BDC325A76236DF93CC6B":PSA_ALG_CTR:"000102030405060708090A0B0C0D0E0F":"":"":PSA_ERROR_NOT_SUPPORTED
PSA AEAD encrypt/decrypt: invalid algorithm (ChaCha20)
depends_on:MBEDTLS_CHACHA20_C
aead_encrypt_decrypt:PSA_KEY_TYPE_CHACHA20:"808182838485868788898a8b8c8d8e8f909192939495969798999a9b9c9d9e9f":PSA_ALG_CHACHA20:"":"":"":PSA_ERROR_NOT_SUPPORTED
PSA signature size: RSA keypair, 1024 bits, PKCS#1 v1.5 raw
signature_size:PSA_KEY_TYPE_RSA_KEYPAIR:1024:PSA_ALG_RSA_PKCS1V15_SIGN_RAW:128