Previous implementation of the rsa signature was using the openssl API EVP_Sign*, but the new openssl API EVP_DigestSign* is more flexible. So we move to this new API.
Signed-off-by: Philippe Reynes philippe.reynes@softathome.com --- lib/rsa/rsa-sign.c | 17 +++++++++++------ 1 file changed, 11 insertions(+), 6 deletions(-)
diff --git a/lib/rsa/rsa-sign.c b/lib/rsa/rsa-sign.c index 05ac67b..78e348e 100644 --- a/lib/rsa/rsa-sign.c +++ b/lib/rsa/rsa-sign.c @@ -393,7 +393,8 @@ static int rsa_sign_with_key(RSA *rsa, struct checksum_algo *checksum_algo, { EVP_PKEY *key; EVP_MD_CTX *context; - int size, ret = 0; + int ret = 0; + size_t size; uint8_t *sig; int i;
@@ -409,7 +410,7 @@ static int rsa_sign_with_key(RSA *rsa, struct checksum_algo *checksum_algo, size = EVP_PKEY_size(key); sig = malloc(size); if (!sig) { - fprintf(stderr, "Out of memory for signature (%d bytes)\n", + fprintf(stderr, "Out of memory for signature (%zu bytes)\n", size); ret = -ENOMEM; goto err_alloc; @@ -421,22 +422,26 @@ static int rsa_sign_with_key(RSA *rsa, struct checksum_algo *checksum_algo, goto err_create; } EVP_MD_CTX_init(context); - if (!EVP_SignInit(context, checksum_algo->calculate_sign())) { + if (EVP_DigestSignInit(context, NULL, + checksum_algo->calculate_sign(), + NULL, key) <= 0) { ret = rsa_err("Signer setup failed"); goto err_sign; }
for (i = 0; i < region_count; i++) { - if (!EVP_SignUpdate(context, region[i].data, region[i].size)) { + if (!EVP_DigestSignUpdate(context, region[i].data, + region[i].size)) { ret = rsa_err("Signing data failed"); goto err_sign; } }
- if (!EVP_SignFinal(context, sig, sig_size, key)) { + if (!EVP_DigestSignFinal(context, sig, &size)) { ret = rsa_err("Could not obtain signature"); goto err_sign; } + #if OPENSSL_VERSION_NUMBER < 0x10100000L || \ (defined(LIBRESSL_VERSION_NUMBER) && LIBRESSL_VERSION_NUMBER < 0x02070000fL) EVP_MD_CTX_cleanup(context); @@ -446,7 +451,7 @@ static int rsa_sign_with_key(RSA *rsa, struct checksum_algo *checksum_algo, EVP_MD_CTX_destroy(context); EVP_PKEY_free(key);
- debug("Got signature: %d bytes, expected %d\n", *sig_size, size); + debug("Got signature: %d bytes, expected %zu\n", *sig_size, size); *sigp = sig; *sig_size = size;