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Add RNG params to private key parsing

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This is necessary for the case where the public part of an EC keypair
needs to be computed from the private part - either because it was not
included (it's an optional component) or because it was compressed (a
format we can't parse).

This changes the API of two public functions: mbedtls_pk_parse_key() and
mbedtls_pk_parse_keyfile().

Tests and programs have been adapted. Some programs use a non-secure RNG
(from the test library) just to get things to compile and run; in a
future commit this should be improved in order to demonstrate best
practice.

Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
This commit is contained in:
Manuel Pégourié-Gonnard
2021-06-15 11:29:26 +02:00
parent 39be1410fd
commit 84dea01f36
25 changed files with 175 additions and 121 deletions
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10
tests/suites/test_suite_x509write.function
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@ -94,7 +94,8 @@ void x509_csr_check( char * key_file, char * cert_req_check_file, int md_type,
memset( &rnd_info, 0x2a, sizeof( mbedtls_test_rnd_pseudo_info ) );
mbedtls_pk_init( &key );
TEST_ASSERT( mbedtls_pk_parse_keyfile( &key, key_file, NULL ) == 0 );
TEST_ASSERT( mbedtls_pk_parse_keyfile( &key, key_file, NULL,
mbedtls_test_rnd_std_rand, NULL ) == 0 );
mbedtls_x509write_csr_init( &req );
mbedtls_x509write_csr_set_md_alg( &req, md_type );
@ -163,7 +164,8 @@ void x509_csr_check_opaque( char *key_file, int md_type, int key_usage,
TEST_ASSERT( md_alg_psa != MBEDTLS_MD_NONE );
mbedtls_pk_init( &key );
TEST_ASSERT( mbedtls_pk_parse_keyfile( &key, key_file, NULL ) == 0 );
TEST_ASSERT( mbedtls_pk_parse_keyfile( &key, key_file, NULL,
mbedtls_test_rnd_std_rand, NULL ) == 0 );
TEST_ASSERT( mbedtls_pk_wrap_as_opaque( &key, &key_id, md_alg_psa ) == 0 );
mbedtls_x509write_csr_init( &req );
@ -225,10 +227,10 @@ void x509_crt_check( char *subject_key_file, char *subject_pwd,
mbedtls_x509write_crt_init( &crt );
TEST_ASSERT( mbedtls_pk_parse_keyfile( &subject_key, subject_key_file,
subject_pwd ) == 0 );
subject_pwd, mbedtls_test_rnd_std_rand, NULL ) == 0 );
TEST_ASSERT( mbedtls_pk_parse_keyfile( &issuer_key, issuer_key_file,
issuer_pwd ) == 0 );
issuer_pwd, mbedtls_test_rnd_std_rand, NULL ) == 0 );
#if defined(MBEDTLS_RSA_C)
/* For RSA PK contexts, create a copy as an alternative RSA context. */