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Implement AEAD-ChaCha20-Poly1305.

Browse Source 
This implementation is based off the description in RFC 7539.

The ChaCha20 code is also updated to provide a means of generating
keystream blocks with arbitrary counter values. This is used to
generated the one-time Poly1305 key in the AEAD construction.
This commit is contained in:
Daniel King
2016-05-17 14:43:01 -03:00
committed by Manuel Pégourié-Gonnard
parent adc32c0b50
commit b8025c5826
15 changed files with 954 additions and 32 deletions
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1
tests/CMakeLists.txt
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@ -44,6 +44,7 @@ if(MSVC)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} /WX-")
endif(MSVC)
add_test_suite(aead_chacha20_poly1305)
add_test_suite(aes aes.ecb)
add_test_suite(aes aes.cbc)
add_test_suite(aes aes.cfb)

8
tests/Makefile
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@ -45,7 +45,8 @@ ifdef ZLIB
LOCAL_LDFLAGS += -lz
endif
APPS = test_suite_aes.ecb$(EXEXT) test_suite_aes.cbc$(EXEXT) \
APPS = test_suite_aead_chacha20_poly1305$(EXEXT) \
test_suite_aes.ecb$(EXEXT) test_suite_aes.cbc$(EXEXT) \
test_suite_aes.cfb$(EXEXT) test_suite_aes.rest$(EXEXT) \
test_suite_arc4$(EXEXT) test_suite_asn1write$(EXEXT) \
test_suite_base64$(EXEXT) test_suite_blowfish$(EXEXT) \
@ -203,6 +204,11 @@ test_suite_hmac_drbg.pr.c : suites/test_suite_hmac_drbg.function suites/test_sui
echo " Gen $@"
perl scripts/generate_code.pl suites $* $*
test_suite_aead_chacha20_poly1305$(EXEXT): test_suite_aead_chacha20_poly1305.c $(DEP)
echo " CC $<"
$(CC) $(LOCAL_CFLAGS) $(CFLAGS) $< $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
test_suite_aes.ecb$(EXEXT): test_suite_aes.ecb.c $(DEP)
echo " CC $<"
$(CC) $(LOCAL_CFLAGS) $(CFLAGS) $< $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@

19
tests/suites/test_suite_aead_chacha20_poly1305.data Normal file
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@ -0,0 +1,19 @@
ChaCha20-Poly1305 RFC 7539 Example and Test Vector (Encrypt)
depends_on:MBEDTLS_AEAD_CHACHA20_POLY1305_C
mbedtls_aead_chacha20_poly1305_enc:"808182838485868788898a8b8c8d8e8f909192939495969798999a9b9c9d9e9f":"070000004041424344454647":"50515253c0c1c2c3c4c5c6c7":"4c616469657320616e642047656e746c656d656e206f662074686520636c617373206f66202739393a204966204920636f756c64206f6666657220796f75206f6e6c79206f6e652074697020666f7220746865206675747572652c2073756e73637265656e20776f756c642062652069742e":"d31a8d34648e60db7b86afbc53ef7ec2a4aded51296e08fea9e2b5a736ee62d63dbea45e8ca9671282fafb69da92728b1a71de0a9e060b2905d6a5b67ecd3b3692ddbd7f2d778b8c9803aee328091b58fab324e4fad675945585808b4831d7bc3ff4def08e4b7a9de576d26586cec64b6116":"1ae10b594f09e26a7e902ecbd0600691"
ChaCha20-Poly1305 RFC 7539 Example and Test Vector (Encrypt)
depends_on:MBEDTLS_AEAD_CHACHA20_POLY1305_C
mbedtls_aead_chacha20_poly1305_dec:"808182838485868788898a8b8c8d8e8f909192939495969798999a9b9c9d9e9f":"070000004041424344454647":"50515253c0c1c2c3c4c5c6c7":"d31a8d34648e60db7b86afbc53ef7ec2a4aded51296e08fea9e2b5a736ee62d63dbea45e8ca9671282fafb69da92728b1a71de0a9e060b2905d6a5b67ecd3b3692ddbd7f2d778b8c9803aee328091b58fab324e4fad675945585808b4831d7bc3ff4def08e4b7a9de576d26586cec64b6116":"4c616469657320616e642047656e746c656d656e206f662074686520636c617373206f66202739393a204966204920636f756c64206f6666657220796f75206f6e6c79206f6e652074697020666f7220746865206675747572652c2073756e73637265656e20776f756c642062652069742e":"1ae10b594f09e26a7e902ecbd0600691"
ChaCha20-Poly1305 RFC 7539 Test Vector #1 (Encrypt)
depends_on:MBEDTLS_AEAD_CHACHA20_POLY1305_C
mbedtls_aead_chacha20_poly1305_enc:"1c9240a5eb55d38af333888604f6b5f0473917c1402b80099dca5cbc207075c0":"000000000102030405060708":"f33388860000000000004e91":"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":"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":"eead9d67890cbb22392336fea1851f38"
ChaCha20-Poly1305 RFC 7539 Test Vector #1 (Decrypt)
depends_on:MBEDTLS_AEAD_CHACHA20_POLY1305_C
mbedtls_aead_chacha20_poly1305_dec:"1c9240a5eb55d38af333888604f6b5f0473917c1402b80099dca5cbc207075c0":"000000000102030405060708":"f33388860000000000004e91":"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":"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":"eead9d67890cbb22392336fea1851f38"
ChaCha20-Poly1305 Selftest
depends_on:MBEDTLS_AEAD_CHACHA20_POLY1305_C:MBEDTLS_SELF_TEST
aead_chacha20_poly1305_selftest:

109
tests/suites/test_suite_aead_chacha20_poly1305.function Normal file
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@ -0,0 +1,109 @@
/* BEGIN_HEADER */
#include "mbedtls/aead_chacha20_poly1305.h"
/* END_HEADER */
/* BEGIN_DEPENDENCIES
* depends_on:MBEDTLS_AEAD_CHACHA20_POLY1305_C
* END_DEPENDENCIES
*/
/* BEGIN_CASE */
void mbedtls_aead_chacha20_poly1305_enc( char *hex_key_string, char *hex_nonce_string, char *hex_aad_string, char *hex_input_string, char *hex_output_string, char *hex_mac_string )
{
unsigned char key_str[32];
unsigned char nonce_str[12];
unsigned char aad_str[10000];
unsigned char input_str[10000];
unsigned char output_str[10000];
unsigned char mac_str[16];
unsigned char output[10000];
unsigned char mac[16];
size_t input_len;
size_t output_len;
size_t aad_len;
size_t key_len;
size_t nonce_len;
size_t mac_len;
memset( key_str, 0x00, 32 );
memset( nonce_str, 0x00, 12 );
memset( aad_str, 0x00, 10000 );
memset( input_str, 0x00, 10000 );
memset( output_str, 0x00, 10000 );
memset( mac_str, 0x00, 16 );
aad_len = unhexify( aad_str, hex_aad_string );
input_len = unhexify( input_str, hex_input_string );
output_len = unhexify( output_str, hex_output_string );
key_len = unhexify( key_str, hex_key_string );
nonce_len = unhexify( nonce_str, hex_nonce_string );
mac_len = unhexify( mac_str, hex_mac_string );
TEST_ASSERT( key_len == 32 );
TEST_ASSERT( nonce_len == 12 );
TEST_ASSERT( mac_len == 16 );
mbedtls_aead_chacha20_poly1305_crypt_and_mac( key_str, nonce_str,
MBEDTLS_AEAD_CHACHA20_POLY1305_ENCRYPT,
aad_len, aad_str,
input_len, input_str, output,
mac );
TEST_ASSERT( memcmp( output_str, output, output_len ) == 0 );
TEST_ASSERT( memcmp( mac_str, mac, 16U ) == 0 );
}
/* END_CASE */
/* BEGIN_CASE */
void mbedtls_aead_chacha20_poly1305_dec( char *hex_key_string, char *hex_nonce_string, char *hex_aad_string, char *hex_input_string, char *hex_output_string, char *hex_mac_string )
{
unsigned char key_str[32];
unsigned char nonce_str[12];
unsigned char aad_str[10000];
unsigned char input_str[10000];
unsigned char output_str[10000];
unsigned char mac_str[16];
unsigned char output[10000];
unsigned char mac[16];
size_t input_len;
size_t output_len;
size_t aad_len;
size_t key_len;
size_t nonce_len;
size_t mac_len;
memset( key_str, 0x00, 32 );
memset( nonce_str, 0x00, 12 );
memset( aad_str, 0x00, 10000 );
memset( input_str, 0x00, 10000 );
memset( output_str, 0x00, 10000 );
memset( mac_str, 0x00, 16 );
aad_len = unhexify( aad_str, hex_aad_string );
input_len = unhexify( input_str, hex_input_string );
output_len = unhexify( output_str, hex_output_string );
key_len = unhexify( key_str, hex_key_string );
nonce_len = unhexify( nonce_str, hex_nonce_string );
mac_len = unhexify( mac_str, hex_mac_string );
TEST_ASSERT( key_len == 32 );
TEST_ASSERT( nonce_len == 12 );
TEST_ASSERT( mac_len == 16 );
mbedtls_aead_chacha20_poly1305_crypt_and_mac( key_str, nonce_str,
MBEDTLS_AEAD_CHACHA20_POLY1305_DECRYPT,
aad_len, aad_str,
input_len, input_str, output,
mac );
TEST_ASSERT( memcmp( output_str, output, output_len ) == 0 );
TEST_ASSERT( memcmp( mac_str, mac, 16U ) == 0 );
}
/* END_CASE */
/* BEGIN_CASE depends_on:MBEDTLS_SELF_TEST */
void aead_chacha20_poly1305_selftest()
{
TEST_ASSERT( mbedtls_aead_chacha20_poly1305_self_test( 1 ) == 0 );
}
/* END_CASE */