diff options
Diffstat (limited to 'thirdparty/mbedtls/library/pkwrite.c')
| -rw-r--r-- | thirdparty/mbedtls/library/pkwrite.c | 450 |
1 files changed, 228 insertions, 222 deletions
diff --git a/thirdparty/mbedtls/library/pkwrite.c b/thirdparty/mbedtls/library/pkwrite.c index c1ce0e3f02..0107f20b1d 100644 --- a/thirdparty/mbedtls/library/pkwrite.c +++ b/thirdparty/mbedtls/library/pkwrite.c @@ -51,10 +51,10 @@ #include "mbedtls/platform.h" /* Parameter validation macros based on platform_util.h */ -#define PK_VALIDATE_RET( cond ) \ - MBEDTLS_INTERNAL_VALIDATE_RET( cond, MBEDTLS_ERR_PK_BAD_INPUT_DATA ) -#define PK_VALIDATE( cond ) \ - MBEDTLS_INTERNAL_VALIDATE( cond ) +#define PK_VALIDATE_RET(cond) \ + MBEDTLS_INTERNAL_VALIDATE_RET(cond, MBEDTLS_ERR_PK_BAD_INPUT_DATA) +#define PK_VALIDATE(cond) \ + MBEDTLS_INTERNAL_VALIDATE(cond) #if defined(MBEDTLS_RSA_C) /* @@ -63,38 +63,41 @@ * publicExponent INTEGER -- e * } */ -static int pk_write_rsa_pubkey( unsigned char **p, unsigned char *start, - mbedtls_rsa_context *rsa ) +static int pk_write_rsa_pubkey(unsigned char **p, unsigned char *start, + mbedtls_rsa_context *rsa) { int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; size_t len = 0; mbedtls_mpi T; - mbedtls_mpi_init( &T ); + mbedtls_mpi_init(&T); /* Export E */ - if ( ( ret = mbedtls_rsa_export( rsa, NULL, NULL, NULL, NULL, &T ) ) != 0 || - ( ret = mbedtls_asn1_write_mpi( p, start, &T ) ) < 0 ) + if ((ret = mbedtls_rsa_export(rsa, NULL, NULL, NULL, NULL, &T)) != 0 || + (ret = mbedtls_asn1_write_mpi(p, start, &T)) < 0) { goto end_of_export; + } len += ret; /* Export N */ - if ( ( ret = mbedtls_rsa_export( rsa, &T, NULL, NULL, NULL, NULL ) ) != 0 || - ( ret = mbedtls_asn1_write_mpi( p, start, &T ) ) < 0 ) + if ((ret = mbedtls_rsa_export(rsa, &T, NULL, NULL, NULL, NULL)) != 0 || + (ret = mbedtls_asn1_write_mpi(p, start, &T)) < 0) { goto end_of_export; + } len += ret; end_of_export: - mbedtls_mpi_free( &T ); - if( ret < 0 ) - return( ret ); + mbedtls_mpi_free(&T); + if (ret < 0) { + return ret; + } - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, len ) ); - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_CONSTRUCTED | - MBEDTLS_ASN1_SEQUENCE ) ); + MBEDTLS_ASN1_CHK_ADD(len, mbedtls_asn1_write_len(p, start, len)); + MBEDTLS_ASN1_CHK_ADD(len, mbedtls_asn1_write_tag(p, start, MBEDTLS_ASN1_CONSTRUCTED | + MBEDTLS_ASN1_SEQUENCE)); - return( (int) len ); + return (int) len; } #endif /* MBEDTLS_RSA_C */ @@ -102,27 +105,27 @@ end_of_export: /* * EC public key is an EC point */ -static int pk_write_ec_pubkey( unsigned char **p, unsigned char *start, - mbedtls_ecp_keypair *ec ) +static int pk_write_ec_pubkey(unsigned char **p, unsigned char *start, + mbedtls_ecp_keypair *ec) { int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; size_t len = 0; unsigned char buf[MBEDTLS_ECP_MAX_PT_LEN]; - if( ( ret = mbedtls_ecp_point_write_binary( &ec->grp, &ec->Q, - MBEDTLS_ECP_PF_UNCOMPRESSED, - &len, buf, sizeof( buf ) ) ) != 0 ) - { - return( ret ); + if ((ret = mbedtls_ecp_point_write_binary(&ec->grp, &ec->Q, + MBEDTLS_ECP_PF_UNCOMPRESSED, + &len, buf, sizeof(buf))) != 0) { + return ret; } - if( *p < start || (size_t)( *p - start ) < len ) - return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL ); + if (*p < start || (size_t) (*p - start) < len) { + return MBEDTLS_ERR_ASN1_BUF_TOO_SMALL; + } *p -= len; - memcpy( *p, buf, len ); + memcpy(*p, buf, len); - return( (int) len ); + return (int) len; } /* @@ -130,93 +133,91 @@ static int pk_write_ec_pubkey( unsigned char **p, unsigned char *start, * namedCurve OBJECT IDENTIFIER * } */ -static int pk_write_ec_param( unsigned char **p, unsigned char *start, - mbedtls_ecp_keypair *ec ) +static int pk_write_ec_param(unsigned char **p, unsigned char *start, + mbedtls_ecp_keypair *ec) { int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; size_t len = 0; const char *oid; size_t oid_len; - if( ( ret = mbedtls_oid_get_oid_by_ec_grp( ec->grp.id, &oid, &oid_len ) ) != 0 ) - return( ret ); + if ((ret = mbedtls_oid_get_oid_by_ec_grp(ec->grp.id, &oid, &oid_len)) != 0) { + return ret; + } - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_oid( p, start, oid, oid_len ) ); + MBEDTLS_ASN1_CHK_ADD(len, mbedtls_asn1_write_oid(p, start, oid, oid_len)); - return( (int) len ); + return (int) len; } /* * privateKey OCTET STRING -- always of length ceil(log2(n)/8) */ -static int pk_write_ec_private( unsigned char **p, unsigned char *start, - mbedtls_ecp_keypair *ec ) +static int pk_write_ec_private(unsigned char **p, unsigned char *start, + mbedtls_ecp_keypair *ec) { int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; - size_t byte_length = ( ec->grp.pbits + 7 ) / 8; + size_t byte_length = (ec->grp.pbits + 7) / 8; unsigned char tmp[MBEDTLS_ECP_MAX_BYTES]; - ret = mbedtls_ecp_write_key( ec, tmp, byte_length ); - if( ret != 0 ) + ret = mbedtls_ecp_write_key(ec, tmp, byte_length); + if (ret != 0) { goto exit; - ret = mbedtls_asn1_write_octet_string( p, start, tmp, byte_length ); + } + ret = mbedtls_asn1_write_octet_string(p, start, tmp, byte_length); exit: - mbedtls_platform_zeroize( tmp, byte_length ); - return( ret ); + mbedtls_platform_zeroize(tmp, byte_length); + return ret; } #endif /* MBEDTLS_ECP_C */ -int mbedtls_pk_write_pubkey( unsigned char **p, unsigned char *start, - const mbedtls_pk_context *key ) +int mbedtls_pk_write_pubkey(unsigned char **p, unsigned char *start, + const mbedtls_pk_context *key) { int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; size_t len = 0; - PK_VALIDATE_RET( p != NULL ); - PK_VALIDATE_RET( *p != NULL ); - PK_VALIDATE_RET( start != NULL ); - PK_VALIDATE_RET( key != NULL ); + PK_VALIDATE_RET(p != NULL); + PK_VALIDATE_RET(*p != NULL); + PK_VALIDATE_RET(start != NULL); + PK_VALIDATE_RET(key != NULL); #if defined(MBEDTLS_RSA_C) - if( mbedtls_pk_get_type( key ) == MBEDTLS_PK_RSA ) - MBEDTLS_ASN1_CHK_ADD( len, pk_write_rsa_pubkey( p, start, mbedtls_pk_rsa( *key ) ) ); - else + if (mbedtls_pk_get_type(key) == MBEDTLS_PK_RSA) { + MBEDTLS_ASN1_CHK_ADD(len, pk_write_rsa_pubkey(p, start, mbedtls_pk_rsa(*key))); + } else #endif #if defined(MBEDTLS_ECP_C) - if( mbedtls_pk_get_type( key ) == MBEDTLS_PK_ECKEY ) - MBEDTLS_ASN1_CHK_ADD( len, pk_write_ec_pubkey( p, start, mbedtls_pk_ec( *key ) ) ); - else + if (mbedtls_pk_get_type(key) == MBEDTLS_PK_ECKEY) { + MBEDTLS_ASN1_CHK_ADD(len, pk_write_ec_pubkey(p, start, mbedtls_pk_ec(*key))); + } else #endif #if defined(MBEDTLS_USE_PSA_CRYPTO) - if( mbedtls_pk_get_type( key ) == MBEDTLS_PK_OPAQUE ) - { + if (mbedtls_pk_get_type(key) == MBEDTLS_PK_OPAQUE) { size_t buffer_size; - psa_key_id_t* key_id = (psa_key_id_t*) key->pk_ctx; + psa_key_id_t *key_id = (psa_key_id_t *) key->pk_ctx; - if ( *p < start ) - return( MBEDTLS_ERR_PK_BAD_INPUT_DATA ); - - buffer_size = (size_t)( *p - start ); - if ( psa_export_public_key( *key_id, start, buffer_size, &len ) - != PSA_SUCCESS ) - { - return( MBEDTLS_ERR_PK_BAD_INPUT_DATA ); + if (*p < start) { + return MBEDTLS_ERR_PK_BAD_INPUT_DATA; } - else - { + + buffer_size = (size_t) (*p - start); + if (psa_export_public_key(*key_id, start, buffer_size, &len) + != PSA_SUCCESS) { + return MBEDTLS_ERR_PK_BAD_INPUT_DATA; + } else { *p -= len; - memmove( *p, start, len ); + memmove(*p, start, len); } - } - else + } else #endif /* MBEDTLS_USE_PSA_CRYPTO */ - return( MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE ); + return MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE; - return( (int) len ); + return (int) len; } -int mbedtls_pk_write_pubkey_der( mbedtls_pk_context *key, unsigned char *buf, size_t size ) +int mbedtls_pk_write_pubkey_der(mbedtls_pk_context *key, unsigned char *buf, size_t size) { int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; unsigned char *c; @@ -224,17 +225,19 @@ int mbedtls_pk_write_pubkey_der( mbedtls_pk_context *key, unsigned char *buf, si mbedtls_pk_type_t pk_type; const char *oid; - PK_VALIDATE_RET( key != NULL ); - if( size == 0 ) - return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL ); - PK_VALIDATE_RET( buf != NULL ); + PK_VALIDATE_RET(key != NULL); + if (size == 0) { + return MBEDTLS_ERR_ASN1_BUF_TOO_SMALL; + } + PK_VALIDATE_RET(buf != NULL); c = buf + size; - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_pk_write_pubkey( &c, buf, key ) ); + MBEDTLS_ASN1_CHK_ADD(len, mbedtls_pk_write_pubkey(&c, buf, key)); - if( c - buf < 1 ) - return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL ); + if (c - buf < 1) { + return MBEDTLS_ERR_ASN1_BUF_TOO_SMALL; + } /* * SubjectPublicKeyInfo ::= SEQUENCE { @@ -244,162 +247,169 @@ int mbedtls_pk_write_pubkey_der( mbedtls_pk_context *key, unsigned char *buf, si *--c = 0; len += 1; - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, buf, len ) ); - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, buf, MBEDTLS_ASN1_BIT_STRING ) ); + MBEDTLS_ASN1_CHK_ADD(len, mbedtls_asn1_write_len(&c, buf, len)); + MBEDTLS_ASN1_CHK_ADD(len, mbedtls_asn1_write_tag(&c, buf, MBEDTLS_ASN1_BIT_STRING)); - pk_type = mbedtls_pk_get_type( key ); + pk_type = mbedtls_pk_get_type(key); #if defined(MBEDTLS_ECP_C) - if( pk_type == MBEDTLS_PK_ECKEY ) - { - MBEDTLS_ASN1_CHK_ADD( par_len, pk_write_ec_param( &c, buf, mbedtls_pk_ec( *key ) ) ); + if (pk_type == MBEDTLS_PK_ECKEY) { + MBEDTLS_ASN1_CHK_ADD(par_len, pk_write_ec_param(&c, buf, mbedtls_pk_ec(*key))); } #endif #if defined(MBEDTLS_USE_PSA_CRYPTO) - if( pk_type == MBEDTLS_PK_OPAQUE ) - { + if (pk_type == MBEDTLS_PK_OPAQUE) { psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT; psa_key_type_t key_type; psa_key_id_t key_id; psa_ecc_family_t curve; size_t bits; - key_id = *((psa_key_id_t*) key->pk_ctx ); - if( PSA_SUCCESS != psa_get_key_attributes( key_id, &attributes ) ) - return( MBEDTLS_ERR_PK_HW_ACCEL_FAILED ); - key_type = psa_get_key_type( &attributes ); - bits = psa_get_key_bits( &attributes ); - psa_reset_key_attributes( &attributes ); + key_id = *((psa_key_id_t *) key->pk_ctx); + if (PSA_SUCCESS != psa_get_key_attributes(key_id, &attributes)) { + return MBEDTLS_ERR_PK_HW_ACCEL_FAILED; + } + key_type = psa_get_key_type(&attributes); + bits = psa_get_key_bits(&attributes); + psa_reset_key_attributes(&attributes); - curve = PSA_KEY_TYPE_ECC_GET_FAMILY( key_type ); - if( curve == 0 ) - return( MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE ); + curve = PSA_KEY_TYPE_ECC_GET_FAMILY(key_type); + if (curve == 0) { + return MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE; + } - ret = mbedtls_psa_get_ecc_oid_from_id( curve, bits, &oid, &oid_len ); - if( ret != 0 ) - return( MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE ); + ret = mbedtls_psa_get_ecc_oid_from_id(curve, bits, &oid, &oid_len); + if (ret != 0) { + return MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE; + } /* Write EC algorithm parameters; that's akin * to pk_write_ec_param() above. */ - MBEDTLS_ASN1_CHK_ADD( par_len, mbedtls_asn1_write_oid( &c, buf, - oid, oid_len ) ); + MBEDTLS_ASN1_CHK_ADD(par_len, mbedtls_asn1_write_oid(&c, buf, + oid, oid_len)); /* The rest of the function works as for legacy EC contexts. */ pk_type = MBEDTLS_PK_ECKEY; } #endif /* MBEDTLS_USE_PSA_CRYPTO */ - if( ( ret = mbedtls_oid_get_oid_by_pk_alg( pk_type, &oid, - &oid_len ) ) != 0 ) - { - return( ret ); + if ((ret = mbedtls_oid_get_oid_by_pk_alg(pk_type, &oid, + &oid_len)) != 0) { + return ret; } - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_algorithm_identifier( &c, buf, oid, oid_len, - par_len ) ); + MBEDTLS_ASN1_CHK_ADD(len, mbedtls_asn1_write_algorithm_identifier(&c, buf, oid, oid_len, + par_len)); - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, buf, len ) ); - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, buf, MBEDTLS_ASN1_CONSTRUCTED | - MBEDTLS_ASN1_SEQUENCE ) ); + MBEDTLS_ASN1_CHK_ADD(len, mbedtls_asn1_write_len(&c, buf, len)); + MBEDTLS_ASN1_CHK_ADD(len, mbedtls_asn1_write_tag(&c, buf, MBEDTLS_ASN1_CONSTRUCTED | + MBEDTLS_ASN1_SEQUENCE)); - return( (int) len ); + return (int) len; } -int mbedtls_pk_write_key_der( mbedtls_pk_context *key, unsigned char *buf, size_t size ) +int mbedtls_pk_write_key_der(mbedtls_pk_context *key, unsigned char *buf, size_t size) { int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; unsigned char *c; size_t len = 0; - PK_VALIDATE_RET( key != NULL ); - if( size == 0 ) - return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL ); - PK_VALIDATE_RET( buf != NULL ); + PK_VALIDATE_RET(key != NULL); + if (size == 0) { + return MBEDTLS_ERR_ASN1_BUF_TOO_SMALL; + } + PK_VALIDATE_RET(buf != NULL); c = buf + size; #if defined(MBEDTLS_RSA_C) - if( mbedtls_pk_get_type( key ) == MBEDTLS_PK_RSA ) - { + if (mbedtls_pk_get_type(key) == MBEDTLS_PK_RSA) { mbedtls_mpi T; /* Temporary holding the exported parameters */ - mbedtls_rsa_context *rsa = mbedtls_pk_rsa( *key ); + mbedtls_rsa_context *rsa = mbedtls_pk_rsa(*key); /* * Export the parameters one after another to avoid simultaneous copies. */ - mbedtls_mpi_init( &T ); + mbedtls_mpi_init(&T); /* Export QP */ - if( ( ret = mbedtls_rsa_export_crt( rsa, NULL, NULL, &T ) ) != 0 || - ( ret = mbedtls_asn1_write_mpi( &c, buf, &T ) ) < 0 ) + if ((ret = mbedtls_rsa_export_crt(rsa, NULL, NULL, &T)) != 0 || + (ret = mbedtls_asn1_write_mpi(&c, buf, &T)) < 0) { goto end_of_export; + } len += ret; /* Export DQ */ - if( ( ret = mbedtls_rsa_export_crt( rsa, NULL, &T, NULL ) ) != 0 || - ( ret = mbedtls_asn1_write_mpi( &c, buf, &T ) ) < 0 ) + if ((ret = mbedtls_rsa_export_crt(rsa, NULL, &T, NULL)) != 0 || + (ret = mbedtls_asn1_write_mpi(&c, buf, &T)) < 0) { goto end_of_export; + } len += ret; /* Export DP */ - if( ( ret = mbedtls_rsa_export_crt( rsa, &T, NULL, NULL ) ) != 0 || - ( ret = mbedtls_asn1_write_mpi( &c, buf, &T ) ) < 0 ) + if ((ret = mbedtls_rsa_export_crt(rsa, &T, NULL, NULL)) != 0 || + (ret = mbedtls_asn1_write_mpi(&c, buf, &T)) < 0) { goto end_of_export; + } len += ret; /* Export Q */ - if ( ( ret = mbedtls_rsa_export( rsa, NULL, NULL, - &T, NULL, NULL ) ) != 0 || - ( ret = mbedtls_asn1_write_mpi( &c, buf, &T ) ) < 0 ) + if ((ret = mbedtls_rsa_export(rsa, NULL, NULL, + &T, NULL, NULL)) != 0 || + (ret = mbedtls_asn1_write_mpi(&c, buf, &T)) < 0) { goto end_of_export; + } len += ret; /* Export P */ - if ( ( ret = mbedtls_rsa_export( rsa, NULL, &T, - NULL, NULL, NULL ) ) != 0 || - ( ret = mbedtls_asn1_write_mpi( &c, buf, &T ) ) < 0 ) + if ((ret = mbedtls_rsa_export(rsa, NULL, &T, + NULL, NULL, NULL)) != 0 || + (ret = mbedtls_asn1_write_mpi(&c, buf, &T)) < 0) { goto end_of_export; + } len += ret; /* Export D */ - if ( ( ret = mbedtls_rsa_export( rsa, NULL, NULL, - NULL, &T, NULL ) ) != 0 || - ( ret = mbedtls_asn1_write_mpi( &c, buf, &T ) ) < 0 ) + if ((ret = mbedtls_rsa_export(rsa, NULL, NULL, + NULL, &T, NULL)) != 0 || + (ret = mbedtls_asn1_write_mpi(&c, buf, &T)) < 0) { goto end_of_export; + } len += ret; /* Export E */ - if ( ( ret = mbedtls_rsa_export( rsa, NULL, NULL, - NULL, NULL, &T ) ) != 0 || - ( ret = mbedtls_asn1_write_mpi( &c, buf, &T ) ) < 0 ) + if ((ret = mbedtls_rsa_export(rsa, NULL, NULL, + NULL, NULL, &T)) != 0 || + (ret = mbedtls_asn1_write_mpi(&c, buf, &T)) < 0) { goto end_of_export; + } len += ret; /* Export N */ - if ( ( ret = mbedtls_rsa_export( rsa, &T, NULL, - NULL, NULL, NULL ) ) != 0 || - ( ret = mbedtls_asn1_write_mpi( &c, buf, &T ) ) < 0 ) + if ((ret = mbedtls_rsa_export(rsa, &T, NULL, + NULL, NULL, NULL)) != 0 || + (ret = mbedtls_asn1_write_mpi(&c, buf, &T)) < 0) { goto end_of_export; + } len += ret; - end_of_export: +end_of_export: - mbedtls_mpi_free( &T ); - if( ret < 0 ) - return( ret ); + mbedtls_mpi_free(&T); + if (ret < 0) { + return ret; + } - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_int( &c, buf, 0 ) ); - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, buf, len ) ); - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, - buf, MBEDTLS_ASN1_CONSTRUCTED | - MBEDTLS_ASN1_SEQUENCE ) ); - } - else + MBEDTLS_ASN1_CHK_ADD(len, mbedtls_asn1_write_int(&c, buf, 0)); + MBEDTLS_ASN1_CHK_ADD(len, mbedtls_asn1_write_len(&c, buf, len)); + MBEDTLS_ASN1_CHK_ADD(len, mbedtls_asn1_write_tag(&c, + buf, MBEDTLS_ASN1_CONSTRUCTED | + MBEDTLS_ASN1_SEQUENCE)); + } else #endif /* MBEDTLS_RSA_C */ #if defined(MBEDTLS_ECP_C) - if( mbedtls_pk_get_type( key ) == MBEDTLS_PK_ECKEY ) - { - mbedtls_ecp_keypair *ec = mbedtls_pk_ec( *key ); + if (mbedtls_pk_get_type(key) == MBEDTLS_PK_ECKEY) { + mbedtls_ecp_keypair *ec = mbedtls_pk_ec(*key); size_t pub_len = 0, par_len = 0; /* @@ -414,44 +424,46 @@ int mbedtls_pk_write_key_der( mbedtls_pk_context *key, unsigned char *buf, size_ */ /* publicKey */ - MBEDTLS_ASN1_CHK_ADD( pub_len, pk_write_ec_pubkey( &c, buf, ec ) ); + MBEDTLS_ASN1_CHK_ADD(pub_len, pk_write_ec_pubkey(&c, buf, ec)); - if( c - buf < 1 ) - return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL ); + if (c - buf < 1) { + return MBEDTLS_ERR_ASN1_BUF_TOO_SMALL; + } *--c = 0; pub_len += 1; - MBEDTLS_ASN1_CHK_ADD( pub_len, mbedtls_asn1_write_len( &c, buf, pub_len ) ); - MBEDTLS_ASN1_CHK_ADD( pub_len, mbedtls_asn1_write_tag( &c, buf, MBEDTLS_ASN1_BIT_STRING ) ); + MBEDTLS_ASN1_CHK_ADD(pub_len, mbedtls_asn1_write_len(&c, buf, pub_len)); + MBEDTLS_ASN1_CHK_ADD(pub_len, mbedtls_asn1_write_tag(&c, buf, MBEDTLS_ASN1_BIT_STRING)); - MBEDTLS_ASN1_CHK_ADD( pub_len, mbedtls_asn1_write_len( &c, buf, pub_len ) ); - MBEDTLS_ASN1_CHK_ADD( pub_len, mbedtls_asn1_write_tag( &c, buf, - MBEDTLS_ASN1_CONTEXT_SPECIFIC | MBEDTLS_ASN1_CONSTRUCTED | 1 ) ); + MBEDTLS_ASN1_CHK_ADD(pub_len, mbedtls_asn1_write_len(&c, buf, pub_len)); + MBEDTLS_ASN1_CHK_ADD(pub_len, mbedtls_asn1_write_tag(&c, buf, + MBEDTLS_ASN1_CONTEXT_SPECIFIC | + MBEDTLS_ASN1_CONSTRUCTED | 1)); len += pub_len; /* parameters */ - MBEDTLS_ASN1_CHK_ADD( par_len, pk_write_ec_param( &c, buf, ec ) ); + MBEDTLS_ASN1_CHK_ADD(par_len, pk_write_ec_param(&c, buf, ec)); - MBEDTLS_ASN1_CHK_ADD( par_len, mbedtls_asn1_write_len( &c, buf, par_len ) ); - MBEDTLS_ASN1_CHK_ADD( par_len, mbedtls_asn1_write_tag( &c, buf, - MBEDTLS_ASN1_CONTEXT_SPECIFIC | MBEDTLS_ASN1_CONSTRUCTED | 0 ) ); + MBEDTLS_ASN1_CHK_ADD(par_len, mbedtls_asn1_write_len(&c, buf, par_len)); + MBEDTLS_ASN1_CHK_ADD(par_len, mbedtls_asn1_write_tag(&c, buf, + MBEDTLS_ASN1_CONTEXT_SPECIFIC | + MBEDTLS_ASN1_CONSTRUCTED | 0)); len += par_len; /* privateKey */ - MBEDTLS_ASN1_CHK_ADD( len, pk_write_ec_private( &c, buf, ec ) ); + MBEDTLS_ASN1_CHK_ADD(len, pk_write_ec_private(&c, buf, ec)); /* version */ - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_int( &c, buf, 1 ) ); + MBEDTLS_ASN1_CHK_ADD(len, mbedtls_asn1_write_int(&c, buf, 1)); - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, buf, len ) ); - MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, buf, MBEDTLS_ASN1_CONSTRUCTED | - MBEDTLS_ASN1_SEQUENCE ) ); - } - else + MBEDTLS_ASN1_CHK_ADD(len, mbedtls_asn1_write_len(&c, buf, len)); + MBEDTLS_ASN1_CHK_ADD(len, mbedtls_asn1_write_tag(&c, buf, MBEDTLS_ASN1_CONSTRUCTED | + MBEDTLS_ASN1_SEQUENCE)); + } else #endif /* MBEDTLS_ECP_C */ - return( MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE ); + return MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE; - return( (int) len ); + return (int) len; } #if defined(MBEDTLS_PEM_WRITE_C) @@ -481,7 +493,7 @@ int mbedtls_pk_write_key_der( mbedtls_pk_context *key, unsigned char *buf, size_ * publicExponent INTEGER -- e 1 + 3 + MPI_MAX + 1 * } */ -#define RSA_PUB_DER_MAX_BYTES ( 38 + 2 * MBEDTLS_MPI_MAX_SIZE ) +#define RSA_PUB_DER_MAX_BYTES (38 + 2 * MBEDTLS_MPI_MAX_SIZE) /* * RSA private keys: @@ -498,10 +510,10 @@ int mbedtls_pk_write_key_der( mbedtls_pk_context *key, unsigned char *buf, size_ * otherPrimeInfos OtherPrimeInfos OPTIONAL 0 (not supported) * } */ -#define MPI_MAX_SIZE_2 ( MBEDTLS_MPI_MAX_SIZE / 2 + \ - MBEDTLS_MPI_MAX_SIZE % 2 ) -#define RSA_PRV_DER_MAX_BYTES ( 47 + 3 * MBEDTLS_MPI_MAX_SIZE \ - + 5 * MPI_MAX_SIZE_2 ) +#define MPI_MAX_SIZE_2 (MBEDTLS_MPI_MAX_SIZE / 2 + \ + MBEDTLS_MPI_MAX_SIZE % 2) +#define RSA_PRV_DER_MAX_BYTES (47 + 3 * MBEDTLS_MPI_MAX_SIZE \ + + 5 * MPI_MAX_SIZE_2) #else /* MBEDTLS_RSA_C */ @@ -522,7 +534,7 @@ int mbedtls_pk_write_key_der( mbedtls_pk_context *key, unsigned char *buf, size_ * + 2 * ECP_MAX (coords) [1] * } */ -#define ECP_PUB_DER_MAX_BYTES ( 30 + 2 * MBEDTLS_ECP_MAX_BYTES ) +#define ECP_PUB_DER_MAX_BYTES (30 + 2 * MBEDTLS_ECP_MAX_BYTES) /* * EC private keys: @@ -533,7 +545,7 @@ int mbedtls_pk_write_key_der( mbedtls_pk_context *key, unsigned char *buf, size_ * publicKey [1] BIT STRING OPTIONAL 1 + 2 + [1] above * } */ -#define ECP_PRV_DER_MAX_BYTES ( 29 + 3 * MBEDTLS_ECP_MAX_BYTES ) +#define ECP_PRV_DER_MAX_BYTES (29 + 3 * MBEDTLS_ECP_MAX_BYTES) #else /* MBEDTLS_ECP_C */ @@ -542,75 +554,69 @@ int mbedtls_pk_write_key_der( mbedtls_pk_context *key, unsigned char *buf, size_ #endif /* MBEDTLS_ECP_C */ -#define PUB_DER_MAX_BYTES ( RSA_PUB_DER_MAX_BYTES > ECP_PUB_DER_MAX_BYTES ? \ - RSA_PUB_DER_MAX_BYTES : ECP_PUB_DER_MAX_BYTES ) -#define PRV_DER_MAX_BYTES ( RSA_PRV_DER_MAX_BYTES > ECP_PRV_DER_MAX_BYTES ? \ - RSA_PRV_DER_MAX_BYTES : ECP_PRV_DER_MAX_BYTES ) +#define PUB_DER_MAX_BYTES (RSA_PUB_DER_MAX_BYTES > ECP_PUB_DER_MAX_BYTES ? \ + RSA_PUB_DER_MAX_BYTES : ECP_PUB_DER_MAX_BYTES) +#define PRV_DER_MAX_BYTES (RSA_PRV_DER_MAX_BYTES > ECP_PRV_DER_MAX_BYTES ? \ + RSA_PRV_DER_MAX_BYTES : ECP_PRV_DER_MAX_BYTES) -int mbedtls_pk_write_pubkey_pem( mbedtls_pk_context *key, unsigned char *buf, size_t size ) +int mbedtls_pk_write_pubkey_pem(mbedtls_pk_context *key, unsigned char *buf, size_t size) { int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; unsigned char output_buf[PUB_DER_MAX_BYTES]; size_t olen = 0; - PK_VALIDATE_RET( key != NULL ); - PK_VALIDATE_RET( buf != NULL || size == 0 ); + PK_VALIDATE_RET(key != NULL); + PK_VALIDATE_RET(buf != NULL || size == 0); - if( ( ret = mbedtls_pk_write_pubkey_der( key, output_buf, - sizeof(output_buf) ) ) < 0 ) - { - return( ret ); + if ((ret = mbedtls_pk_write_pubkey_der(key, output_buf, + sizeof(output_buf))) < 0) { + return ret; } - if( ( ret = mbedtls_pem_write_buffer( PEM_BEGIN_PUBLIC_KEY, PEM_END_PUBLIC_KEY, - output_buf + sizeof(output_buf) - ret, - ret, buf, size, &olen ) ) != 0 ) - { - return( ret ); + if ((ret = mbedtls_pem_write_buffer(PEM_BEGIN_PUBLIC_KEY, PEM_END_PUBLIC_KEY, + output_buf + sizeof(output_buf) - ret, + ret, buf, size, &olen)) != 0) { + return ret; } - return( 0 ); + return 0; } -int mbedtls_pk_write_key_pem( mbedtls_pk_context *key, unsigned char *buf, size_t size ) +int mbedtls_pk_write_key_pem(mbedtls_pk_context *key, unsigned char *buf, size_t size) { int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; unsigned char output_buf[PRV_DER_MAX_BYTES]; const char *begin, *end; size_t olen = 0; - PK_VALIDATE_RET( key != NULL ); - PK_VALIDATE_RET( buf != NULL || size == 0 ); + PK_VALIDATE_RET(key != NULL); + PK_VALIDATE_RET(buf != NULL || size == 0); - if( ( ret = mbedtls_pk_write_key_der( key, output_buf, sizeof(output_buf) ) ) < 0 ) - return( ret ); + if ((ret = mbedtls_pk_write_key_der(key, output_buf, sizeof(output_buf))) < 0) { + return ret; + } #if defined(MBEDTLS_RSA_C) - if( mbedtls_pk_get_type( key ) == MBEDTLS_PK_RSA ) - { + if (mbedtls_pk_get_type(key) == MBEDTLS_PK_RSA) { begin = PEM_BEGIN_PRIVATE_KEY_RSA; end = PEM_END_PRIVATE_KEY_RSA; - } - else + } else #endif #if defined(MBEDTLS_ECP_C) - if( mbedtls_pk_get_type( key ) == MBEDTLS_PK_ECKEY ) - { + if (mbedtls_pk_get_type(key) == MBEDTLS_PK_ECKEY) { begin = PEM_BEGIN_PRIVATE_KEY_EC; end = PEM_END_PRIVATE_KEY_EC; - } - else + } else #endif - return( MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE ); + return MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE; - if( ( ret = mbedtls_pem_write_buffer( begin, end, - output_buf + sizeof(output_buf) - ret, - ret, buf, size, &olen ) ) != 0 ) - { - return( ret ); + if ((ret = mbedtls_pem_write_buffer(begin, end, + output_buf + sizeof(output_buf) - ret, + ret, buf, size, &olen)) != 0) { + return ret; } - return( 0 ); + return 0; } #endif /* MBEDTLS_PEM_WRITE_C */ |