Merge pull request #964 from soby-mathew/sm/rsapss_sup

Add support for RSASSAPSS algorithm
This commit is contained in:
danh-arm 2017-06-05 14:45:10 +01:00 committed by GitHub
commit 47fd7cb0ac
4 changed files with 49 additions and 15 deletions

View File

@ -16,7 +16,7 @@
#if (TF_MBEDTLS_KEY_ALG_ID == TF_MBEDTLS_ECDSA)
#define MBEDTLS_HEAP_SIZE (14*1024)
#elif (TF_MBEDTLS_KEY_ALG_ID == TF_MBEDTLS_RSA)
#define MBEDTLS_HEAP_SIZE (6*1024)
#define MBEDTLS_HEAP_SIZE (7*1024)
#endif
static unsigned char heap[MBEDTLS_HEAP_SIZE];

View File

@ -60,7 +60,7 @@ static int verify_signature(void *data_ptr, unsigned int data_len,
mbedtls_asn1_buf signature;
mbedtls_md_type_t md_alg;
mbedtls_pk_type_t pk_alg;
mbedtls_pk_context pk;
mbedtls_pk_context pk = {0};
int rc;
void *sig_opts = NULL;
const mbedtls_md_info_t *md_info;
@ -76,7 +76,7 @@ static int verify_signature(void *data_ptr, unsigned int data_len,
}
/* Get the actual signature algorithm (MD + PK) */
rc = mbedtls_oid_get_sig_alg(&sig_oid, &md_alg, &pk_alg);
rc = mbedtls_x509_get_sig_alg(&sig_oid, &sig_params, &md_alg, &pk_alg, &sig_opts);
if (rc != 0) {
return CRYPTO_ERR_SIGNATURE;
}
@ -87,7 +87,8 @@ static int verify_signature(void *data_ptr, unsigned int data_len,
end = (unsigned char *)(p + pk_len);
rc = mbedtls_pk_parse_subpubkey(&p, end, &pk);
if (rc != 0) {
return CRYPTO_ERR_SIGNATURE;
rc = CRYPTO_ERR_SIGNATURE;
goto end2;
}
/* Get the signature (bitstring) */
@ -97,7 +98,7 @@ static int verify_signature(void *data_ptr, unsigned int data_len,
rc = mbedtls_asn1_get_bitstring_null(&p, end, &signature.len);
if (rc != 0) {
rc = CRYPTO_ERR_SIGNATURE;
goto end;
goto end1;
}
signature.p = p;
@ -105,13 +106,13 @@ static int verify_signature(void *data_ptr, unsigned int data_len,
md_info = mbedtls_md_info_from_type(md_alg);
if (md_info == NULL) {
rc = CRYPTO_ERR_SIGNATURE;
goto end;
goto end1;
}
p = (unsigned char *)data_ptr;
rc = mbedtls_md(md_info, p, data_len, hash);
if (rc != 0) {
rc = CRYPTO_ERR_SIGNATURE;
goto end;
goto end1;
}
/* Verify the signature */
@ -120,14 +121,16 @@ static int verify_signature(void *data_ptr, unsigned int data_len,
signature.p, signature.len);
if (rc != 0) {
rc = CRYPTO_ERR_SIGNATURE;
goto end;
goto end1;
}
/* Signature verification success */
rc = CRYPTO_SUCCESS;
end:
end1:
mbedtls_pk_free(&pk);
end2:
mbedtls_free(sig_opts);
return rc;
}

View File

@ -22,12 +22,15 @@
/* Prevent mbed TLS from using snprintf so that it can use tf_snprintf. */
#define MBEDTLS_PLATFORM_SNPRINTF_ALT
#if !ERROR_DEPRECATED
#define MBEDTLS_PKCS1_V15
#endif
#define MBEDTLS_PKCS1_V21
#define MBEDTLS_X509_ALLOW_UNSUPPORTED_CRITICAL_EXTENSION
#define MBEDTLS_X509_CHECK_KEY_USAGE
#define MBEDTLS_X509_CHECK_EXTENDED_KEY_USAGE
#define MBEDTLS_X509_RSASSA_PSS_SUPPORT
#define MBEDTLS_ASN1_PARSE_C
#define MBEDTLS_ASN1_WRITE_C

View File

@ -10,6 +10,7 @@
#include <openssl/conf.h>
#include <openssl/err.h>
#include <openssl/opensslv.h>
#include <openssl/pem.h>
#include <openssl/sha.h>
#include <openssl/x509v3.h>
@ -27,6 +28,7 @@
#include "sha.h"
#define SERIAL_RAND_BITS 64
#define RSA_SALT_LEN 32
int rand_serial(BIGNUM *b, ASN1_INTEGER *ai)
{
@ -77,7 +79,6 @@ int cert_add_ext(X509 *issuer, X509 *subject, int nid, char *value)
return 1;
}
int cert_new(cert_t *cert, int days, int ca, STACK_OF(X509_EXTENSION) * sk)
{
EVP_PKEY *pkey = keys[cert->key].key;
@ -88,7 +89,9 @@ int cert_new(cert_t *cert, int days, int ca, STACK_OF(X509_EXTENSION) * sk)
X509_EXTENSION *ex;
X509_NAME *name;
ASN1_INTEGER *sno;
int i, num;
int i, num, rc = 0;
EVP_MD_CTX mdCtx;
EVP_PKEY_CTX *pKeyCtx = NULL;
/* Create the certificate structure */
x = X509_new();
@ -108,6 +111,27 @@ int cert_new(cert_t *cert, int days, int ca, STACK_OF(X509_EXTENSION) * sk)
issuer = x;
}
EVP_MD_CTX_init(&mdCtx);
if (!EVP_DigestSignInit(&mdCtx, &pKeyCtx, EVP_sha256(), NULL, ikey)) {
ERR_print_errors_fp(stdout);
goto END;
}
if (!EVP_PKEY_CTX_set_rsa_padding(pKeyCtx, RSA_PKCS1_PSS_PADDING)) {
ERR_print_errors_fp(stdout);
goto END;
}
if (!EVP_PKEY_CTX_set_rsa_pss_saltlen(pKeyCtx, RSA_SALT_LEN)) {
ERR_print_errors_fp(stdout);
goto END;
}
if (!EVP_PKEY_CTX_set_rsa_mgf1_md(pKeyCtx, EVP_sha256())) {
ERR_print_errors_fp(stdout);
goto END;
}
/* x509.v3 */
X509_set_version(x, 2);
@ -152,14 +176,18 @@ int cert_new(cert_t *cert, int days, int ca, STACK_OF(X509_EXTENSION) * sk)
}
}
/* Sign the certificate with the issuer key */
if (!X509_sign(x, ikey, EVP_sha256())) {
if (!X509_sign_ctx(x, &mdCtx)) {
ERR_print_errors_fp(stdout);
return 0;
goto END;
}
/* X509 certificate signed successfully */
rc = 1;
cert->x = x;
return 1;
END:
EVP_MD_CTX_cleanup(&mdCtx);
return rc;
}
int cert_init(void)