zte's code,first commit
Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/lib/libssl/openssl-1.1.1o/crypto/rsa/rsa_pss.c b/ap/lib/libssl/openssl-1.1.1o/crypto/rsa/rsa_pss.c
new file mode 100644
index 0000000..40ce1c4
--- /dev/null
+++ b/ap/lib/libssl/openssl-1.1.1o/crypto/rsa/rsa_pss.c
@@ -0,0 +1,255 @@
+/*
+ * Copyright 2005-2018 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/evp.h>
+#include <openssl/rand.h>
+#include <openssl/sha.h>
+#include "rsa_local.h"
+
+static const unsigned char zeroes[] = { 0, 0, 0, 0, 0, 0, 0, 0 };
+
+#if defined(_MSC_VER) && defined(_ARM_)
+# pragma optimize("g", off)
+#endif
+
+int RSA_verify_PKCS1_PSS(RSA *rsa, const unsigned char *mHash,
+ const EVP_MD *Hash, const unsigned char *EM,
+ int sLen)
+{
+ return RSA_verify_PKCS1_PSS_mgf1(rsa, mHash, Hash, NULL, EM, sLen);
+}
+
+int RSA_verify_PKCS1_PSS_mgf1(RSA *rsa, const unsigned char *mHash,
+ const EVP_MD *Hash, const EVP_MD *mgf1Hash,
+ const unsigned char *EM, int sLen)
+{
+ int i;
+ int ret = 0;
+ int hLen, maskedDBLen, MSBits, emLen;
+ const unsigned char *H;
+ unsigned char *DB = NULL;
+ EVP_MD_CTX *ctx = EVP_MD_CTX_new();
+ unsigned char H_[EVP_MAX_MD_SIZE];
+
+ if (ctx == NULL)
+ goto err;
+
+ if (mgf1Hash == NULL)
+ mgf1Hash = Hash;
+
+ hLen = EVP_MD_size(Hash);
+ if (hLen < 0)
+ goto err;
+ /*-
+ * Negative sLen has special meanings:
+ * -1 sLen == hLen
+ * -2 salt length is autorecovered from signature
+ * -3 salt length is maximized
+ * -N reserved
+ */
+ if (sLen == RSA_PSS_SALTLEN_DIGEST) {
+ sLen = hLen;
+ } else if (sLen < RSA_PSS_SALTLEN_MAX) {
+ RSAerr(RSA_F_RSA_VERIFY_PKCS1_PSS_MGF1, RSA_R_SLEN_CHECK_FAILED);
+ goto err;
+ }
+
+ MSBits = (BN_num_bits(rsa->n) - 1) & 0x7;
+ emLen = RSA_size(rsa);
+ if (EM[0] & (0xFF << MSBits)) {
+ RSAerr(RSA_F_RSA_VERIFY_PKCS1_PSS_MGF1, RSA_R_FIRST_OCTET_INVALID);
+ goto err;
+ }
+ if (MSBits == 0) {
+ EM++;
+ emLen--;
+ }
+ if (emLen < hLen + 2) {
+ RSAerr(RSA_F_RSA_VERIFY_PKCS1_PSS_MGF1, RSA_R_DATA_TOO_LARGE);
+ goto err;
+ }
+ if (sLen == RSA_PSS_SALTLEN_MAX) {
+ sLen = emLen - hLen - 2;
+ } else if (sLen > emLen - hLen - 2) { /* sLen can be small negative */
+ RSAerr(RSA_F_RSA_VERIFY_PKCS1_PSS_MGF1, RSA_R_DATA_TOO_LARGE);
+ goto err;
+ }
+ if (EM[emLen - 1] != 0xbc) {
+ RSAerr(RSA_F_RSA_VERIFY_PKCS1_PSS_MGF1, RSA_R_LAST_OCTET_INVALID);
+ goto err;
+ }
+ maskedDBLen = emLen - hLen - 1;
+ H = EM + maskedDBLen;
+ DB = OPENSSL_malloc(maskedDBLen);
+ if (DB == NULL) {
+ RSAerr(RSA_F_RSA_VERIFY_PKCS1_PSS_MGF1, ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+ if (PKCS1_MGF1(DB, maskedDBLen, H, hLen, mgf1Hash) < 0)
+ goto err;
+ for (i = 0; i < maskedDBLen; i++)
+ DB[i] ^= EM[i];
+ if (MSBits)
+ DB[0] &= 0xFF >> (8 - MSBits);
+ for (i = 0; DB[i] == 0 && i < (maskedDBLen - 1); i++) ;
+ if (DB[i++] != 0x1) {
+ RSAerr(RSA_F_RSA_VERIFY_PKCS1_PSS_MGF1, RSA_R_SLEN_RECOVERY_FAILED);
+ goto err;
+ }
+ if (sLen != RSA_PSS_SALTLEN_AUTO && (maskedDBLen - i) != sLen) {
+ RSAerr(RSA_F_RSA_VERIFY_PKCS1_PSS_MGF1, RSA_R_SLEN_CHECK_FAILED);
+ goto err;
+ }
+ if (!EVP_DigestInit_ex(ctx, Hash, NULL)
+ || !EVP_DigestUpdate(ctx, zeroes, sizeof(zeroes))
+ || !EVP_DigestUpdate(ctx, mHash, hLen))
+ goto err;
+ if (maskedDBLen - i) {
+ if (!EVP_DigestUpdate(ctx, DB + i, maskedDBLen - i))
+ goto err;
+ }
+ if (!EVP_DigestFinal_ex(ctx, H_, NULL))
+ goto err;
+ if (memcmp(H_, H, hLen)) {
+ RSAerr(RSA_F_RSA_VERIFY_PKCS1_PSS_MGF1, RSA_R_BAD_SIGNATURE);
+ ret = 0;
+ } else {
+ ret = 1;
+ }
+
+ err:
+ OPENSSL_free(DB);
+ EVP_MD_CTX_free(ctx);
+
+ return ret;
+
+}
+
+int RSA_padding_add_PKCS1_PSS(RSA *rsa, unsigned char *EM,
+ const unsigned char *mHash,
+ const EVP_MD *Hash, int sLen)
+{
+ return RSA_padding_add_PKCS1_PSS_mgf1(rsa, EM, mHash, Hash, NULL, sLen);
+}
+
+int RSA_padding_add_PKCS1_PSS_mgf1(RSA *rsa, unsigned char *EM,
+ const unsigned char *mHash,
+ const EVP_MD *Hash, const EVP_MD *mgf1Hash,
+ int sLen)
+{
+ int i;
+ int ret = 0;
+ int hLen, maskedDBLen, MSBits, emLen;
+ unsigned char *H, *salt = NULL, *p;
+ EVP_MD_CTX *ctx = NULL;
+
+ if (mgf1Hash == NULL)
+ mgf1Hash = Hash;
+
+ hLen = EVP_MD_size(Hash);
+ if (hLen < 0)
+ goto err;
+ /*-
+ * Negative sLen has special meanings:
+ * -1 sLen == hLen
+ * -2 salt length is maximized
+ * -3 same as above (on signing)
+ * -N reserved
+ */
+ if (sLen == RSA_PSS_SALTLEN_DIGEST) {
+ sLen = hLen;
+ } else if (sLen == RSA_PSS_SALTLEN_MAX_SIGN) {
+ sLen = RSA_PSS_SALTLEN_MAX;
+ } else if (sLen < RSA_PSS_SALTLEN_MAX) {
+ RSAerr(RSA_F_RSA_PADDING_ADD_PKCS1_PSS_MGF1, RSA_R_SLEN_CHECK_FAILED);
+ goto err;
+ }
+
+ MSBits = (BN_num_bits(rsa->n) - 1) & 0x7;
+ emLen = RSA_size(rsa);
+ if (MSBits == 0) {
+ *EM++ = 0;
+ emLen--;
+ }
+ if (emLen < hLen + 2) {
+ RSAerr(RSA_F_RSA_PADDING_ADD_PKCS1_PSS_MGF1,
+ RSA_R_DATA_TOO_LARGE_FOR_KEY_SIZE);
+ goto err;
+ }
+ if (sLen == RSA_PSS_SALTLEN_MAX) {
+ sLen = emLen - hLen - 2;
+ } else if (sLen > emLen - hLen - 2) {
+ RSAerr(RSA_F_RSA_PADDING_ADD_PKCS1_PSS_MGF1,
+ RSA_R_DATA_TOO_LARGE_FOR_KEY_SIZE);
+ goto err;
+ }
+ if (sLen > 0) {
+ salt = OPENSSL_malloc(sLen);
+ if (salt == NULL) {
+ RSAerr(RSA_F_RSA_PADDING_ADD_PKCS1_PSS_MGF1,
+ ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+ if (RAND_bytes(salt, sLen) <= 0)
+ goto err;
+ }
+ maskedDBLen = emLen - hLen - 1;
+ H = EM + maskedDBLen;
+ ctx = EVP_MD_CTX_new();
+ if (ctx == NULL)
+ goto err;
+ if (!EVP_DigestInit_ex(ctx, Hash, NULL)
+ || !EVP_DigestUpdate(ctx, zeroes, sizeof(zeroes))
+ || !EVP_DigestUpdate(ctx, mHash, hLen))
+ goto err;
+ if (sLen && !EVP_DigestUpdate(ctx, salt, sLen))
+ goto err;
+ if (!EVP_DigestFinal_ex(ctx, H, NULL))
+ goto err;
+
+ /* Generate dbMask in place then perform XOR on it */
+ if (PKCS1_MGF1(EM, maskedDBLen, H, hLen, mgf1Hash))
+ goto err;
+
+ p = EM;
+
+ /*
+ * Initial PS XORs with all zeroes which is a NOP so just update pointer.
+ * Note from a test above this value is guaranteed to be non-negative.
+ */
+ p += emLen - sLen - hLen - 2;
+ *p++ ^= 0x1;
+ if (sLen > 0) {
+ for (i = 0; i < sLen; i++)
+ *p++ ^= salt[i];
+ }
+ if (MSBits)
+ EM[0] &= 0xFF >> (8 - MSBits);
+
+ /* H is already in place so just set final 0xbc */
+
+ EM[emLen - 1] = 0xbc;
+
+ ret = 1;
+
+ err:
+ EVP_MD_CTX_free(ctx);
+ OPENSSL_clear_free(salt, (size_t)sLen); /* salt != NULL implies sLen > 0 */
+
+ return ret;
+
+}
+
+#if defined(_MSC_VER)
+# pragma optimize("",on)
+#endif