import openssl-0.9.8j

1 files changed, 390 insertions, 0 deletions

diff --git a/src/lib/libcrypto/evp/enc_min.c b/src/lib/libcrypto/evp/enc_min.c
new file mode 100644
index 0000000000..3cb4626bef
--- /dev/null
+++ b/src/lib/libcrypto/evp/enc_min.c
@@ -0,0 +1,390 @@
+/* crypto/evp/enc_min.c */
+/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young (eay@cryptsoft.com).
+ * The implementation was written so as to conform with Netscapes SSL.
+ * 
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson (tjh@cryptsoft.com).
+ * 
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young (eay@cryptsoft.com)"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from 
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
+ * 
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ * 
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.]
+ */
+
+#include <stdio.h>
+#include "cryptlib.h"
+#include <openssl/evp.h>
+#include <openssl/err.h>
+#include <openssl/rand.h>
+#ifndef OPENSSL_NO_ENGINE
+#include <openssl/engine.h>
+#endif
+#include "evp_locl.h"
+
+void EVP_CIPHER_CTX_init(EVP_CIPHER_CTX *ctx)
+        {
+#ifdef OPENSSL_FIPS
+        FIPS_selftest_check();
+#endif
+        memset(ctx,0,sizeof(EVP_CIPHER_CTX));
+        /* ctx->cipher=NULL; */
+        }
+
+#ifdef OPENSSL_FIPS
+
+/* The purpose of these is to trap programs that attempt to use non FIPS
+ * algorithms in FIPS mode and ignore the errors.
+ */
+
+static int bad_init(EVP_CIPHER_CTX *ctx, const unsigned char *key,
+                    const unsigned char *iv, int enc)
+        { FIPS_ERROR_IGNORED("Cipher init"); return 0;}
+
+static int bad_do_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
+                         const unsigned char *in, unsigned int inl)
+        { FIPS_ERROR_IGNORED("Cipher update"); return 0;}
+
+/* NB: no cleanup because it is allowed after failed init */
+
+static int bad_set_asn1(EVP_CIPHER_CTX *ctx, ASN1_TYPE *typ)
+        { FIPS_ERROR_IGNORED("Cipher set_asn1"); return 0;}
+static int bad_get_asn1(EVP_CIPHER_CTX *ctx, ASN1_TYPE *typ)
+        { FIPS_ERROR_IGNORED("Cipher get_asn1"); return 0;}
+static int bad_ctrl(EVP_CIPHER_CTX *ctx, int type, int arg, void *ptr)
+        { FIPS_ERROR_IGNORED("Cipher ctrl"); return 0;}
+
+static const EVP_CIPHER bad_cipher =
+        {
+        0,
+        0,
+        0,
+        0,
+        0,
+        bad_init,
+        bad_do_cipher,
+        NULL,
+        0,
+        bad_set_asn1,
+        bad_get_asn1,
+        bad_ctrl,
+        NULL
+        };
+
+#endif
+
+#ifndef OPENSSL_NO_ENGINE
+
+#ifdef OPENSSL_FIPS
+
+static int do_engine_null(ENGINE *impl) { return 0;}
+static int do_evp_enc_engine_null(EVP_CIPHER_CTX *ctx,
+                                const EVP_CIPHER **pciph, ENGINE *impl)
+        { return 1; }
+
+static int (*do_engine_finish)(ENGINE *impl)
+                = do_engine_null;
+
+static int (*do_evp_enc_engine)
+        (EVP_CIPHER_CTX *ctx, const EVP_CIPHER **pciph, ENGINE *impl)
+                = do_evp_enc_engine_null;
+
+void int_EVP_CIPHER_set_engine_callbacks(
+        int (*eng_ciph_fin)(ENGINE *impl),
+        int (*eng_ciph_evp)
+                (EVP_CIPHER_CTX *ctx, const EVP_CIPHER **pciph, ENGINE *impl))
+        {
+        do_engine_finish = eng_ciph_fin;
+        do_evp_enc_engine = eng_ciph_evp;
+        }
+
+#else
+
+#define do_engine_finish ENGINE_finish
+
+static int do_evp_enc_engine(EVP_CIPHER_CTX *ctx, const EVP_CIPHER **pcipher, ENGINE *impl)
+        {
+        if(impl)
+                {
+                if (!ENGINE_init(impl))
+                        {
+                        EVPerr(EVP_F_DO_EVP_ENC_ENGINE, EVP_R_INITIALIZATION_ERROR);
+                        return 0;
+                        }
+                }
+        else
+                /* Ask if an ENGINE is reserved for this job */
+                impl = ENGINE_get_cipher_engine((*pcipher)->nid);
+        if(impl)
+                {
+                /* There's an ENGINE for this job ... (apparently) */
+                const EVP_CIPHER *c = ENGINE_get_cipher(impl, (*pcipher)->nid);
+                if(!c)
+                        {
+                        /* One positive side-effect of US's export
+                         * control history, is that we should at least
+                         * be able to avoid using US mispellings of
+                         * "initialisation"? */
+                        EVPerr(EVP_F_DO_EVP_ENC_ENGINE, EVP_R_INITIALIZATION_ERROR);
+                        return 0;
+                        }
+                /* We'll use the ENGINE's private cipher definition */
+                *pcipher = c;
+                /* Store the ENGINE functional reference so we know
+                 * 'cipher' came from an ENGINE and we need to release
+                 * it when done. */
+                ctx->engine = impl;
+                }
+        else
+                ctx->engine = NULL;
+        return 1;
+        }
+
+#endif
+
+#endif
+
+int EVP_CipherInit_ex(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *cipher, ENGINE *impl,
+             const unsigned char *key, const unsigned char *iv, int enc)
+        {
+        if (enc == -1)
+                enc = ctx->encrypt;
+        else
+                {
+                if (enc)
+                        enc = 1;
+                ctx->encrypt = enc;
+                }
+#ifdef OPENSSL_NO_FIPS
+        if(FIPS_selftest_failed())
+                {
+                FIPSerr(FIPS_F_EVP_CIPHERINIT_EX,FIPS_R_FIPS_SELFTEST_FAILED);
+                ctx->cipher = &bad_cipher;
+                return 0;
+                }
+#endif
+#ifndef OPENSSL_NO_ENGINE
+        /* Whether it's nice or not, "Inits" can be used on "Final"'d contexts
+         * so this context may already have an ENGINE! Try to avoid releasing
+         * the previous handle, re-querying for an ENGINE, and having a
+         * reinitialisation, when it may all be unecessary. */
+        if (ctx->engine && ctx->cipher && (!cipher ||
+                        (cipher && (cipher->nid == ctx->cipher->nid))))
+                goto skip_to_init;
+#endif
+        if (cipher)
+                {
+                /* Ensure a context left lying around from last time is cleared
+                 * (the previous check attempted to avoid this if the same
+                 * ENGINE and EVP_CIPHER could be used). */
+                EVP_CIPHER_CTX_cleanup(ctx);
+
+                /* Restore encrypt field: it is zeroed by cleanup */
+                ctx->encrypt = enc;
+#ifndef OPENSSL_NO_ENGINE
+                if (!do_evp_enc_engine(ctx, &cipher, impl))
+                        return 0;
+#endif
+
+                ctx->cipher=cipher;
+                if (ctx->cipher->ctx_size)
+                        {
+                        ctx->cipher_data=OPENSSL_malloc(ctx->cipher->ctx_size);
+                        if (!ctx->cipher_data)
+                                {
+                                EVPerr(EVP_F_EVP_CIPHERINIT_EX, ERR_R_MALLOC_FAILURE);
+                                return 0;
+                                }
+                        }
+                else
+                        {
+                        ctx->cipher_data = NULL;
+                        }
+                ctx->key_len = cipher->key_len;
+                ctx->flags = 0;
+                if(ctx->cipher->flags & EVP_CIPH_CTRL_INIT)
+                        {
+                        if(!EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_INIT, 0, NULL))
+                                {
+                                EVPerr(EVP_F_EVP_CIPHERINIT_EX, EVP_R_INITIALIZATION_ERROR);
+                                return 0;
+                                }
+                        }
+                }
+        else if(!ctx->cipher)
+                {
+                EVPerr(EVP_F_EVP_CIPHERINIT_EX, EVP_R_NO_CIPHER_SET);
+                return 0;
+                }
+#ifndef OPENSSL_NO_ENGINE
+skip_to_init:
+#endif
+        /* we assume block size is a power of 2 in *cryptUpdate */
+        OPENSSL_assert(ctx->cipher->block_size == 1
+            || ctx->cipher->block_size == 8
+            || ctx->cipher->block_size == 16);
+
+        if(!(EVP_CIPHER_CTX_flags(ctx) & EVP_CIPH_CUSTOM_IV)) {
+                switch(EVP_CIPHER_CTX_mode(ctx)) {
+
+                        case EVP_CIPH_STREAM_CIPHER:
+                        case EVP_CIPH_ECB_MODE:
+                        break;
+
+                        case EVP_CIPH_CFB_MODE:
+                        case EVP_CIPH_OFB_MODE:
+
+                        ctx->num = 0;
+
+                        case EVP_CIPH_CBC_MODE:
+
+                        OPENSSL_assert(EVP_CIPHER_CTX_iv_length(ctx) <=
+                                        (int)sizeof(ctx->iv));
+                        if(iv) memcpy(ctx->oiv, iv, EVP_CIPHER_CTX_iv_length(ctx));
+                        memcpy(ctx->iv, ctx->oiv, EVP_CIPHER_CTX_iv_length(ctx));
+                        break;
+
+                        default:
+                        return 0;
+                        break;
+                }
+        }
+
+#ifdef OPENSSL_FIPS
+        /* After 'key' is set no further parameters changes are permissible.
+         * So only check for non FIPS enabling at this point.
+         */
+        if (key && FIPS_mode())
+                {
+                if (!(ctx->cipher->flags & EVP_CIPH_FLAG_FIPS)
+                        & !(ctx->flags & EVP_CIPH_FLAG_NON_FIPS_ALLOW))
+                        {
+                        EVPerr(EVP_F_EVP_CIPHERINIT_EX, EVP_R_DISABLED_FOR_FIPS);
+#if 0
+                        ERR_add_error_data(2, "cipher=",
+                                                EVP_CIPHER_name(ctx->cipher));
+#endif
+                        ctx->cipher = &bad_cipher;
+                        return 0;
+                        }
+                }
+#endif
+
+        if(key || (ctx->cipher->flags & EVP_CIPH_ALWAYS_CALL_INIT)) {
+                if(!ctx->cipher->init(ctx,key,iv,enc)) return 0;
+        }
+        ctx->buf_len=0;
+        ctx->final_used=0;
+        ctx->block_mask=ctx->cipher->block_size-1;
+        return 1;
+        }
+
+int EVP_CIPHER_CTX_cleanup(EVP_CIPHER_CTX *c)
+        {
+        if (c->cipher != NULL)
+                {
+                if(c->cipher->cleanup && !c->cipher->cleanup(c))
+                        return 0;
+                /* Cleanse cipher context data */
+                if (c->cipher_data)
+                        OPENSSL_cleanse(c->cipher_data, c->cipher->ctx_size);
+                }
+        if (c->cipher_data)
+                OPENSSL_free(c->cipher_data);
+#ifndef OPENSSL_NO_ENGINE
+        if (c->engine)
+                /* The EVP_CIPHER we used belongs to an ENGINE, release the
+                 * functional reference we held for this reason. */
+                do_engine_finish(c->engine);
+#endif
+        memset(c,0,sizeof(EVP_CIPHER_CTX));
+        return 1;
+        }
+
+int EVP_Cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, unsigned int inl)
+        {
+#ifdef OPENSSL_FIPS
+        FIPS_selftest_check();
+#endif
+        return ctx->cipher->do_cipher(ctx,out,in,inl);
+        }
+
+int EVP_CIPHER_CTX_ctrl(EVP_CIPHER_CTX *ctx, int type, int arg, void *ptr)
+{
+        int ret;
+        if(!ctx->cipher) {
+                EVPerr(EVP_F_EVP_CIPHER_CTX_CTRL, EVP_R_NO_CIPHER_SET);
+                return 0;
+        }
+
+        if(!ctx->cipher->ctrl) {
+                EVPerr(EVP_F_EVP_CIPHER_CTX_CTRL, EVP_R_CTRL_NOT_IMPLEMENTED);
+                return 0;
+        }
+
+        ret = ctx->cipher->ctrl(ctx, type, arg, ptr);
+        if(ret == -1) {
+                EVPerr(EVP_F_EVP_CIPHER_CTX_CTRL, EVP_R_CTRL_OPERATION_NOT_IMPLEMENTED);
+                return 0;
+        }
+        return ret;
+}
+
+unsigned long EVP_CIPHER_CTX_flags(const EVP_CIPHER_CTX *ctx)
+        {
+        return ctx->cipher->flags;
+        }
+
+int EVP_CIPHER_CTX_iv_length(const EVP_CIPHER_CTX *ctx)
+        {
+        return ctx->cipher->iv_len;
+        }
+
+int EVP_CIPHER_nid(const EVP_CIPHER *cipher)
+        {
+        return cipher->nid;
+        }