zte's code,first commit
Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/lib/libssl/openssl-1.1.1o/crypto/rsa/rsa_saos.c b/ap/lib/libssl/openssl-1.1.1o/crypto/rsa/rsa_saos.c
new file mode 100644
index 0000000..8336f32
--- /dev/null
+++ b/ap/lib/libssl/openssl-1.1.1o/crypto/rsa/rsa_saos.c
@@ -0,0 +1,95 @@
+/*
+ * Copyright 1995-2017 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the OpenSSL license (the "License"). You may not use
+ * this file except in compliance with the License. You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+#include <stdio.h>
+#include "internal/cryptlib.h"
+#include <openssl/bn.h>
+#include <openssl/rsa.h>
+#include <openssl/objects.h>
+#include <openssl/x509.h>
+
+int RSA_sign_ASN1_OCTET_STRING(int type,
+ const unsigned char *m, unsigned int m_len,
+ unsigned char *sigret, unsigned int *siglen,
+ RSA *rsa)
+{
+ ASN1_OCTET_STRING sig;
+ int i, j, ret = 1;
+ unsigned char *p, *s;
+
+ sig.type = V_ASN1_OCTET_STRING;
+ sig.length = m_len;
+ sig.data = (unsigned char *)m;
+
+ i = i2d_ASN1_OCTET_STRING(&sig, NULL);
+ j = RSA_size(rsa);
+ if (i > (j - RSA_PKCS1_PADDING_SIZE)) {
+ RSAerr(RSA_F_RSA_SIGN_ASN1_OCTET_STRING,
+ RSA_R_DIGEST_TOO_BIG_FOR_RSA_KEY);
+ return 0;
+ }
+ s = OPENSSL_malloc((unsigned int)j + 1);
+ if (s == NULL) {
+ RSAerr(RSA_F_RSA_SIGN_ASN1_OCTET_STRING, ERR_R_MALLOC_FAILURE);
+ return 0;
+ }
+ p = s;
+ i2d_ASN1_OCTET_STRING(&sig, &p);
+ i = RSA_private_encrypt(i, s, sigret, rsa, RSA_PKCS1_PADDING);
+ if (i <= 0)
+ ret = 0;
+ else
+ *siglen = i;
+
+ OPENSSL_clear_free(s, (unsigned int)j + 1);
+ return ret;
+}
+
+int RSA_verify_ASN1_OCTET_STRING(int dtype,
+ const unsigned char *m,
+ unsigned int m_len, unsigned char *sigbuf,
+ unsigned int siglen, RSA *rsa)
+{
+ int i, ret = 0;
+ unsigned char *s;
+ const unsigned char *p;
+ ASN1_OCTET_STRING *sig = NULL;
+
+ if (siglen != (unsigned int)RSA_size(rsa)) {
+ RSAerr(RSA_F_RSA_VERIFY_ASN1_OCTET_STRING,
+ RSA_R_WRONG_SIGNATURE_LENGTH);
+ return 0;
+ }
+
+ s = OPENSSL_malloc((unsigned int)siglen);
+ if (s == NULL) {
+ RSAerr(RSA_F_RSA_VERIFY_ASN1_OCTET_STRING, ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+ i = RSA_public_decrypt((int)siglen, sigbuf, s, rsa, RSA_PKCS1_PADDING);
+
+ if (i <= 0)
+ goto err;
+
+ p = s;
+ sig = d2i_ASN1_OCTET_STRING(NULL, &p, (long)i);
+ if (sig == NULL)
+ goto err;
+
+ if (((unsigned int)sig->length != m_len) ||
+ (memcmp(m, sig->data, m_len) != 0)) {
+ RSAerr(RSA_F_RSA_VERIFY_ASN1_OCTET_STRING, RSA_R_BAD_SIGNATURE);
+ } else {
+ ret = 1;
+ }
+ err:
+ ASN1_OCTET_STRING_free(sig);
+ OPENSSL_clear_free(s, (unsigned int)siglen);
+ return ret;
+}