zte's code,first commit

Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/lib/libssl/openssl-1.1.1o/crypto/evp/m_sigver.c b/ap/lib/libssl/openssl-1.1.1o/crypto/evp/m_sigver.c
new file mode 100644
index 0000000..04643ac
--- /dev/null
+++ b/ap/lib/libssl/openssl-1.1.1o/crypto/evp/m_sigver.c
@@ -0,0 +1,218 @@
+/*
+ * Copyright 2006-2018 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/evp.h>
+#include <openssl/objects.h>
+#include <openssl/x509.h>
+#include "crypto/evp.h"
+#include "evp_local.h"
+
+static int update(EVP_MD_CTX *ctx, const void *data, size_t datalen)
+{
+    EVPerr(EVP_F_UPDATE, EVP_R_ONLY_ONESHOT_SUPPORTED);
+    return 0;
+}
+
+static int do_sigver_init(EVP_MD_CTX *ctx, EVP_PKEY_CTX **pctx,
+                          const EVP_MD *type, ENGINE *e, EVP_PKEY *pkey,
+                          int ver)
+{
+    if (ctx->pctx == NULL)
+        ctx->pctx = EVP_PKEY_CTX_new(pkey, e);
+    if (ctx->pctx == NULL)
+        return 0;
+
+    if (!(ctx->pctx->pmeth->flags & EVP_PKEY_FLAG_SIGCTX_CUSTOM)) {
+
+        if (type == NULL) {
+            int def_nid;
+            if (EVP_PKEY_get_default_digest_nid(pkey, &def_nid) > 0)
+                type = EVP_get_digestbynid(def_nid);
+        }
+
+        if (type == NULL) {
+            EVPerr(EVP_F_DO_SIGVER_INIT, EVP_R_NO_DEFAULT_DIGEST);
+            return 0;
+        }
+    }
+
+    if (ver) {
+        if (ctx->pctx->pmeth->verifyctx_init) {
+            if (ctx->pctx->pmeth->verifyctx_init(ctx->pctx, ctx) <= 0)
+                return 0;
+            ctx->pctx->operation = EVP_PKEY_OP_VERIFYCTX;
+        } else if (ctx->pctx->pmeth->digestverify != 0) {
+            ctx->pctx->operation = EVP_PKEY_OP_VERIFY;
+            ctx->update = update;
+        } else if (EVP_PKEY_verify_init(ctx->pctx) <= 0) {
+            return 0;
+        }
+    } else {
+        if (ctx->pctx->pmeth->signctx_init) {
+            if (ctx->pctx->pmeth->signctx_init(ctx->pctx, ctx) <= 0)
+                return 0;
+            ctx->pctx->operation = EVP_PKEY_OP_SIGNCTX;
+        } else if (ctx->pctx->pmeth->digestsign != 0) {
+            ctx->pctx->operation = EVP_PKEY_OP_SIGN;
+            ctx->update = update;
+        } else if (EVP_PKEY_sign_init(ctx->pctx) <= 0) {
+            return 0;
+        }
+    }
+    if (EVP_PKEY_CTX_set_signature_md(ctx->pctx, type) <= 0)
+        return 0;
+    if (pctx)
+        *pctx = ctx->pctx;
+    if (ctx->pctx->pmeth->flags & EVP_PKEY_FLAG_SIGCTX_CUSTOM)
+        return 1;
+    if (!EVP_DigestInit_ex(ctx, type, e))
+        return 0;
+    /*
+     * This indicates the current algorithm requires
+     * special treatment before hashing the tbs-message.
+     */
+    if (ctx->pctx->pmeth->digest_custom != NULL)
+        return ctx->pctx->pmeth->digest_custom(ctx->pctx, ctx);
+
+    return 1;
+}
+
+int EVP_DigestSignInit(EVP_MD_CTX *ctx, EVP_PKEY_CTX **pctx,
+                       const EVP_MD *type, ENGINE *e, EVP_PKEY *pkey)
+{
+    return do_sigver_init(ctx, pctx, type, e, pkey, 0);
+}
+
+int EVP_DigestVerifyInit(EVP_MD_CTX *ctx, EVP_PKEY_CTX **pctx,
+                         const EVP_MD *type, ENGINE *e, EVP_PKEY *pkey)
+{
+    return do_sigver_init(ctx, pctx, type, e, pkey, 1);
+}
+
+int EVP_DigestSignFinal(EVP_MD_CTX *ctx, unsigned char *sigret,
+                        size_t *siglen)
+{
+    int sctx = 0, r = 0;
+    EVP_PKEY_CTX *pctx = ctx->pctx;
+    if (pctx->pmeth->flags & EVP_PKEY_FLAG_SIGCTX_CUSTOM) {
+        if (!sigret)
+            return pctx->pmeth->signctx(pctx, sigret, siglen, ctx);
+        if (ctx->flags & EVP_MD_CTX_FLAG_FINALISE)
+            r = pctx->pmeth->signctx(pctx, sigret, siglen, ctx);
+        else {
+            EVP_PKEY_CTX *dctx = EVP_PKEY_CTX_dup(ctx->pctx);
+            if (!dctx)
+                return 0;
+            r = dctx->pmeth->signctx(dctx, sigret, siglen, ctx);
+            EVP_PKEY_CTX_free(dctx);
+        }
+        return r;
+    }
+    if (pctx->pmeth->signctx)
+        sctx = 1;
+    else
+        sctx = 0;
+    if (sigret) {
+        unsigned char md[EVP_MAX_MD_SIZE];
+        unsigned int mdlen = 0;
+        if (ctx->flags & EVP_MD_CTX_FLAG_FINALISE) {
+            if (sctx)
+                r = ctx->pctx->pmeth->signctx(ctx->pctx, sigret, siglen, ctx);
+            else
+                r = EVP_DigestFinal_ex(ctx, md, &mdlen);
+        } else {
+            EVP_MD_CTX *tmp_ctx = EVP_MD_CTX_new();
+            if (tmp_ctx == NULL)
+                return 0;
+            if (!EVP_MD_CTX_copy_ex(tmp_ctx, ctx)) {
+                EVP_MD_CTX_free(tmp_ctx);
+                return 0;
+            }
+            if (sctx)
+                r = tmp_ctx->pctx->pmeth->signctx(tmp_ctx->pctx,
+                                                  sigret, siglen, tmp_ctx);
+            else
+                r = EVP_DigestFinal_ex(tmp_ctx, md, &mdlen);
+            EVP_MD_CTX_free(tmp_ctx);
+        }
+        if (sctx || !r)
+            return r;
+        if (EVP_PKEY_sign(ctx->pctx, sigret, siglen, md, mdlen) <= 0)
+            return 0;
+    } else {
+        if (sctx) {
+            if (pctx->pmeth->signctx(pctx, sigret, siglen, ctx) <= 0)
+                return 0;
+        } else {
+            int s = EVP_MD_size(ctx->digest);
+            if (s < 0 || EVP_PKEY_sign(pctx, sigret, siglen, NULL, s) <= 0)
+                return 0;
+        }
+    }
+    return 1;
+}
+
+int EVP_DigestSign(EVP_MD_CTX *ctx, unsigned char *sigret, size_t *siglen,
+                   const unsigned char *tbs, size_t tbslen)
+{
+    if (ctx->pctx->pmeth->digestsign != NULL)
+        return ctx->pctx->pmeth->digestsign(ctx, sigret, siglen, tbs, tbslen);
+    if (sigret != NULL && EVP_DigestSignUpdate(ctx, tbs, tbslen) <= 0)
+        return 0;
+    return EVP_DigestSignFinal(ctx, sigret, siglen);
+}
+
+int EVP_DigestVerifyFinal(EVP_MD_CTX *ctx, const unsigned char *sig,
+                          size_t siglen)
+{
+    unsigned char md[EVP_MAX_MD_SIZE];
+    int r = 0;
+    unsigned int mdlen = 0;
+    int vctx = 0;
+
+    if (ctx->pctx->pmeth->verifyctx)
+        vctx = 1;
+    else
+        vctx = 0;
+    if (ctx->flags & EVP_MD_CTX_FLAG_FINALISE) {
+        if (vctx)
+            r = ctx->pctx->pmeth->verifyctx(ctx->pctx, sig, siglen, ctx);
+        else
+            r = EVP_DigestFinal_ex(ctx, md, &mdlen);
+    } else {
+        EVP_MD_CTX *tmp_ctx = EVP_MD_CTX_new();
+        if (tmp_ctx == NULL)
+            return -1;
+        if (!EVP_MD_CTX_copy_ex(tmp_ctx, ctx)) {
+            EVP_MD_CTX_free(tmp_ctx);
+            return -1;
+        }
+        if (vctx)
+            r = tmp_ctx->pctx->pmeth->verifyctx(tmp_ctx->pctx,
+                                                sig, siglen, tmp_ctx);
+        else
+            r = EVP_DigestFinal_ex(tmp_ctx, md, &mdlen);
+        EVP_MD_CTX_free(tmp_ctx);
+    }
+    if (vctx || !r)
+        return r;
+    return EVP_PKEY_verify(ctx->pctx, sig, siglen, md, mdlen);
+}
+
+int EVP_DigestVerify(EVP_MD_CTX *ctx, const unsigned char *sigret,
+                     size_t siglen, const unsigned char *tbs, size_t tbslen)
+{
+    if (ctx->pctx->pmeth->digestverify != NULL)
+        return ctx->pctx->pmeth->digestverify(ctx, sigret, siglen, tbs, tbslen);
+    if (EVP_DigestVerifyUpdate(ctx, tbs, tbslen) <= 0)
+        return -1;
+    return EVP_DigestVerifyFinal(ctx, sigret, siglen);
+}