Merge pull request #964 from soby-mathew/sm/rsapss_sup
Add support for RSASSAPSS algorithm
This commit is contained in:
commit
47fd7cb0ac
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@ -16,7 +16,7 @@
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#if (TF_MBEDTLS_KEY_ALG_ID == TF_MBEDTLS_ECDSA)
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#define MBEDTLS_HEAP_SIZE (14*1024)
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#elif (TF_MBEDTLS_KEY_ALG_ID == TF_MBEDTLS_RSA)
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#define MBEDTLS_HEAP_SIZE (6*1024)
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#define MBEDTLS_HEAP_SIZE (7*1024)
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#endif
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static unsigned char heap[MBEDTLS_HEAP_SIZE];
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@ -60,7 +60,7 @@ static int verify_signature(void *data_ptr, unsigned int data_len,
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mbedtls_asn1_buf signature;
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mbedtls_md_type_t md_alg;
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mbedtls_pk_type_t pk_alg;
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mbedtls_pk_context pk;
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mbedtls_pk_context pk = {0};
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int rc;
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void *sig_opts = NULL;
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const mbedtls_md_info_t *md_info;
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@ -76,7 +76,7 @@ static int verify_signature(void *data_ptr, unsigned int data_len,
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}
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/* Get the actual signature algorithm (MD + PK) */
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rc = mbedtls_oid_get_sig_alg(&sig_oid, &md_alg, &pk_alg);
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rc = mbedtls_x509_get_sig_alg(&sig_oid, &sig_params, &md_alg, &pk_alg, &sig_opts);
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if (rc != 0) {
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return CRYPTO_ERR_SIGNATURE;
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}
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@ -87,7 +87,8 @@ static int verify_signature(void *data_ptr, unsigned int data_len,
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end = (unsigned char *)(p + pk_len);
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rc = mbedtls_pk_parse_subpubkey(&p, end, &pk);
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if (rc != 0) {
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return CRYPTO_ERR_SIGNATURE;
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rc = CRYPTO_ERR_SIGNATURE;
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goto end2;
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}
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/* Get the signature (bitstring) */
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@ -97,7 +98,7 @@ static int verify_signature(void *data_ptr, unsigned int data_len,
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rc = mbedtls_asn1_get_bitstring_null(&p, end, &signature.len);
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if (rc != 0) {
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rc = CRYPTO_ERR_SIGNATURE;
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goto end;
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goto end1;
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}
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signature.p = p;
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@ -105,13 +106,13 @@ static int verify_signature(void *data_ptr, unsigned int data_len,
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md_info = mbedtls_md_info_from_type(md_alg);
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if (md_info == NULL) {
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rc = CRYPTO_ERR_SIGNATURE;
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goto end;
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goto end1;
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}
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p = (unsigned char *)data_ptr;
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rc = mbedtls_md(md_info, p, data_len, hash);
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if (rc != 0) {
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rc = CRYPTO_ERR_SIGNATURE;
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goto end;
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goto end1;
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}
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/* Verify the signature */
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@ -120,14 +121,16 @@ static int verify_signature(void *data_ptr, unsigned int data_len,
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signature.p, signature.len);
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if (rc != 0) {
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rc = CRYPTO_ERR_SIGNATURE;
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goto end;
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goto end1;
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}
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/* Signature verification success */
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rc = CRYPTO_SUCCESS;
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end:
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end1:
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mbedtls_pk_free(&pk);
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end2:
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mbedtls_free(sig_opts);
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return rc;
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}
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@ -22,12 +22,15 @@
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/* Prevent mbed TLS from using snprintf so that it can use tf_snprintf. */
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#define MBEDTLS_PLATFORM_SNPRINTF_ALT
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#if !ERROR_DEPRECATED
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#define MBEDTLS_PKCS1_V15
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#endif
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#define MBEDTLS_PKCS1_V21
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#define MBEDTLS_X509_ALLOW_UNSUPPORTED_CRITICAL_EXTENSION
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#define MBEDTLS_X509_CHECK_KEY_USAGE
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#define MBEDTLS_X509_CHECK_EXTENDED_KEY_USAGE
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#define MBEDTLS_X509_RSASSA_PSS_SUPPORT
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#define MBEDTLS_ASN1_PARSE_C
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#define MBEDTLS_ASN1_WRITE_C
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@ -10,6 +10,7 @@
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#include <openssl/conf.h>
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#include <openssl/err.h>
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#include <openssl/opensslv.h>
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#include <openssl/pem.h>
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#include <openssl/sha.h>
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#include <openssl/x509v3.h>
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@ -27,6 +28,7 @@
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#include "sha.h"
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#define SERIAL_RAND_BITS 64
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#define RSA_SALT_LEN 32
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int rand_serial(BIGNUM *b, ASN1_INTEGER *ai)
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{
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@ -77,7 +79,6 @@ int cert_add_ext(X509 *issuer, X509 *subject, int nid, char *value)
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return 1;
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}
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int cert_new(cert_t *cert, int days, int ca, STACK_OF(X509_EXTENSION) * sk)
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{
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EVP_PKEY *pkey = keys[cert->key].key;
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@ -88,7 +89,9 @@ int cert_new(cert_t *cert, int days, int ca, STACK_OF(X509_EXTENSION) * sk)
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X509_EXTENSION *ex;
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X509_NAME *name;
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ASN1_INTEGER *sno;
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int i, num;
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int i, num, rc = 0;
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EVP_MD_CTX mdCtx;
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EVP_PKEY_CTX *pKeyCtx = NULL;
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/* Create the certificate structure */
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x = X509_new();
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@ -108,6 +111,27 @@ int cert_new(cert_t *cert, int days, int ca, STACK_OF(X509_EXTENSION) * sk)
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issuer = x;
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}
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EVP_MD_CTX_init(&mdCtx);
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if (!EVP_DigestSignInit(&mdCtx, &pKeyCtx, EVP_sha256(), NULL, ikey)) {
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ERR_print_errors_fp(stdout);
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goto END;
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}
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if (!EVP_PKEY_CTX_set_rsa_padding(pKeyCtx, RSA_PKCS1_PSS_PADDING)) {
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ERR_print_errors_fp(stdout);
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goto END;
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}
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if (!EVP_PKEY_CTX_set_rsa_pss_saltlen(pKeyCtx, RSA_SALT_LEN)) {
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ERR_print_errors_fp(stdout);
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goto END;
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}
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if (!EVP_PKEY_CTX_set_rsa_mgf1_md(pKeyCtx, EVP_sha256())) {
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ERR_print_errors_fp(stdout);
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goto END;
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}
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/* x509.v3 */
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X509_set_version(x, 2);
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@ -152,14 +176,18 @@ int cert_new(cert_t *cert, int days, int ca, STACK_OF(X509_EXTENSION) * sk)
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}
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}
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/* Sign the certificate with the issuer key */
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if (!X509_sign(x, ikey, EVP_sha256())) {
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if (!X509_sign_ctx(x, &mdCtx)) {
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ERR_print_errors_fp(stdout);
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return 0;
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goto END;
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}
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/* X509 certificate signed successfully */
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rc = 1;
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cert->x = x;
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return 1;
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END:
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EVP_MD_CTX_cleanup(&mdCtx);
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return rc;
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}
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int cert_init(void)
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