diff options
author | Dr. Stephen Henson <steve@openssl.org> | 2011-01-26 00:56:19 +0000 |
---|---|---|
committer | Dr. Stephen Henson <steve@openssl.org> | 2011-01-26 00:56:19 +0000 |
commit | 2b4b28dc32ce7623f6169b43cd18585174de6b20 (patch) | |
tree | 1a039a5167d52b8060ddb9f3e3820a46956cc52e /fips/utl | |
parent | 72a267331a603c925fae337e508d013eb0103c5e (diff) |
And so it begins... again.
Initial FIPS 140-2 code ported to HEAD. Doesn't even compile yet, may have
missing files, extraneous files and other nastiness.
In other words: it's experimental ATM, OK?
Diffstat (limited to 'fips/utl')
-rw-r--r-- | fips/utl/Makefile | 73 | ||||
-rw-r--r-- | fips/utl/fips_enc.c | 228 | ||||
-rw-r--r-- | fips/utl/fips_err.c | 87 | ||||
-rw-r--r-- | fips/utl/fips_md.c | 265 |
4 files changed, 653 insertions, 0 deletions
diff --git a/fips/utl/Makefile b/fips/utl/Makefile new file mode 100644 index 0000000000..f00d8a66e5 --- /dev/null +++ b/fips/utl/Makefile @@ -0,0 +1,73 @@ +# +# OpenSSL/fips/utl/Makefile +# + +DIR= callback +TOP= ../.. +CC= cc +INCLUDES= +CFLAG=-g +INSTALL_PREFIX= +OPENSSLDIR= /usr/local/ssl +INSTALLTOP=/usr/local/ssl +MAKEDEPPROG= makedepend +MAKEDEPEND= $(TOP)/util/domd $(TOP) -MD $(MAKEDEPPROG) +MAKEFILE= Makefile +AR= ar r + +CFLAGS= $(INCLUDES) $(CFLAG) + +GENERAL=Makefile +TEST= +APPS= + +LIB=$(TOP)/libcrypto.a +LIBSRC= fips_err.c fips_md.c fips_enc.c +LIBOBJ= fips_err.o fips_md.o fips_enc.o + +SRC= $(LIBSRC) + +EXHEADER= +HEADER= $(EXHEADER) + +ALL= $(GENERAL) $(SRC) $(HEADER) + +top: + (cd $(TOP); $(MAKE) DIRS=fips FDIRS=$(DIR) sub_all) + +all: lib + +lib: $(LIBOBJ) + @echo $(LIBOBJ) > lib + +files: + $(PERL) $(TOP)/util/files.pl Makefile >> $(TOP)/MINFO + +links: + @$(PERL) $(TOP)/util/mklink.pl $(TOP)/include/openssl $(EXHEADER) + @$(PERL) $(TOP)/util/mklink.pl $(TOP)/test $(TEST) + @$(PERL) $(TOP)/util/mklink.pl $(TOP)/apps $(APPS) + +install: + @headerlist="$(EXHEADER)"; for i in $$headerlist; \ + do \ + (cp $$i $(INSTALL_PREFIX)$(INSTALLTOP)/include/openssl/$$i; \ + chmod 644 $(INSTALL_PREFIX)$(INSTALLTOP)/include/openssl/$$i ); \ + done + +tags: + ctags $(SRC) + +tests: + +depend: + $(MAKEDEPEND) -- $(CFLAG) $(INCLUDES) $(DEPFLAG) -- $(SRC) $(TEST) + +dclean: + $(PERL) -pe 'if (/^# DO NOT DELETE THIS LINE/) {print; exit(0);}' $(MAKEFILE) >Makefile.new + mv -f Makefile.new $(MAKEFILE) + +clean: + rm -f *.o *.obj lib tags core .pure .nfs* *.old *.bak fluff +# DO NOT DELETE THIS LINE -- make depend depends on it. + diff --git a/fips/utl/fips_enc.c b/fips/utl/fips_enc.c new file mode 100644 index 0000000000..23ba5ddb74 --- /dev/null +++ b/fips/utl/fips_enc.c @@ -0,0 +1,228 @@ +/* fipe/evp/fips_enc.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 <string.h> +#include <openssl/evp.h> +#include <openssl/err.h> +#include <openssl/rand.h> + +void FIPS_cipher_ctx_init(EVP_CIPHER_CTX *ctx) + { + memset(ctx,0,sizeof(EVP_CIPHER_CTX)); + /* ctx->cipher=NULL; */ + } + +EVP_CIPHER_CTX *FIPS_cipher_ctx_new(void) + { + EVP_CIPHER_CTX *ctx=OPENSSL_malloc(sizeof *ctx); + if (ctx) + FIPS_cipher_ctx_init(ctx); + return ctx; + } + +int FIPS_cipherinit(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *cipher, + const unsigned char *key, const unsigned char *iv, int enc) + { + if (enc == -1) + enc = ctx->encrypt; + else + { + if (enc) + enc = 1; + ctx->encrypt = enc; + } + 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). */ + FIPS_cipher_ctx_cleanup(ctx); + + /* Restore encrypt field: it is zeroed by cleanup */ + ctx->encrypt = enc; + + 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(!FIPS_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; + } + /* 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(!(M_EVP_CIPHER_CTX_flags(ctx) & EVP_CIPH_CUSTOM_IV)) { + switch(M_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; + /* fall-through */ + + case EVP_CIPH_CBC_MODE: + + OPENSSL_assert(M_EVP_CIPHER_CTX_iv_length(ctx) <= + (int)sizeof(ctx->iv)); + if(iv) memcpy(ctx->oiv, iv, M_EVP_CIPHER_CTX_iv_length(ctx)); + memcpy(ctx->iv, ctx->oiv, M_EVP_CIPHER_CTX_iv_length(ctx)); + break; + + case EVP_CIPH_CTR_MODE: + /* Don't reuse IV for CTR mode */ + if(iv) + memcpy(ctx->iv, iv, M_EVP_CIPHER_CTX_iv_length(ctx)); + break; + + default: + return 0; + break; + } + } + + 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; + } + +void FIPS_cipher_ctx_free(EVP_CIPHER_CTX *ctx) + { + if (ctx) + { + FIPS_cipher_ctx_cleanup(ctx); + OPENSSL_free(ctx); + } + } + +int FIPS_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); + memset(c,0,sizeof(EVP_CIPHER_CTX)); + return 1; + } + +int FIPS_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; +} + + +int FIPS_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, + const unsigned char *in, unsigned int inl) + { + return ctx->cipher->do_cipher(ctx,out,in,inl); + } diff --git a/fips/utl/fips_err.c b/fips/utl/fips_err.c new file mode 100644 index 0000000000..d5952444da --- /dev/null +++ b/fips/utl/fips_err.c @@ -0,0 +1,87 @@ +/* fips/utl/fips_err.c */ +/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL + * project. + */ +/* ==================================================================== + * Copyright (c) 2010 The OpenSSL Project. All rights reserved. + * + * 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 above 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 acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * licensing@OpenSSL.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED 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 OpenSSL PROJECT OR + * ITS 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. + * ==================================================================== + */ + +#include <openssl/err.h> +#include <openssl/fips.h> + +/* FIPS error callbacks */ + +static void (*fips_put_error_cb)(int lib, int func,int reason,const char *file,int line) = 0; +static void (*fips_add_error_vdata)(int num, va_list args) = 0; + +void FIPS_put_error(int lib, int func,int reason,const char *file,int line) + { + if (fips_put_error_cb) + fips_put_error_cb(lib, func, reason, file, line); + } + +void FIPS_add_error_data(int num, ...) + { + if (fips_add_error_vdata) + { + va_list args; + va_start(args, num); + fips_add_error_vdata(num, args); + va_end(args); + } + } + +void FIPS_set_error_callbacks( + void (*put_cb)(int lib, int func,int reason,const char *file,int line), + void (*add_cb)(int num, va_list args) ) + { + fips_put_error_cb = put_cb; + fips_add_error_vdata = add_cb; + } + + diff --git a/fips/utl/fips_md.c b/fips/utl/fips_md.c new file mode 100644 index 0000000000..6e33e841a5 --- /dev/null +++ b/fips/utl/fips_md.c @@ -0,0 +1,265 @@ +/* fips/evp/fips_md.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.] + */ +/* ==================================================================== + * Copyright (c) 1998-2001 The OpenSSL Project. All rights reserved. + * + * 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 above 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 acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * openssl-core@openssl.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.openssl.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED 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 OpenSSL PROJECT OR + * ITS 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. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ + +/* Minimal standalone FIPS versions of Digest operations */ + +#include <stdio.h> +#include <string.h> +#include <openssl/objects.h> +#include <openssl/evp.h> +#include <openssl/err.h> + +void FIPS_md_ctx_init(EVP_MD_CTX *ctx) + { + memset(ctx,'\0',sizeof *ctx); + } + +EVP_MD_CTX *FIPS_md_ctx_create(void) + { + EVP_MD_CTX *ctx=OPENSSL_malloc(sizeof *ctx); + + if (ctx) + FIPS_md_ctx_init(ctx); + + return ctx; + } + +int FIPS_digestinit(EVP_MD_CTX *ctx, const EVP_MD *type) + { + M_EVP_MD_CTX_clear_flags(ctx,EVP_MD_CTX_FLAG_CLEANED); + if (ctx->digest != type) + { + if (ctx->digest && ctx->digest->ctx_size) + OPENSSL_free(ctx->md_data); + ctx->digest=type; + if (!(ctx->flags & EVP_MD_CTX_FLAG_NO_INIT) && type->ctx_size) + { + ctx->update = type->update; + ctx->md_data=OPENSSL_malloc(type->ctx_size); + if (ctx->md_data == NULL) + { + EVPerr(EVP_F_EVP_DIGESTINIT_EX, + ERR_R_MALLOC_FAILURE); + return 0; + } + } + } + if (ctx->flags & EVP_MD_CTX_FLAG_NO_INIT) + return 1; + return ctx->digest->init(ctx); + } + +int FIPS_digestupdate(EVP_MD_CTX *ctx, const void *data, size_t count) + { + return ctx->update(ctx,data,count); + } + +/* The caller can assume that this removes any secret data from the context */ +int FIPS_digestfinal(EVP_MD_CTX *ctx, unsigned char *md, unsigned int *size) + { + int ret; + + OPENSSL_assert(ctx->digest->md_size <= EVP_MAX_MD_SIZE); + ret=ctx->digest->final(ctx,md); + if (size != NULL) + *size=ctx->digest->md_size; + if (ctx->digest->cleanup) + { + ctx->digest->cleanup(ctx); + M_EVP_MD_CTX_set_flags(ctx,EVP_MD_CTX_FLAG_CLEANED); + } + memset(ctx->md_data,0,ctx->digest->ctx_size); + return ret; + } + +int FIPS_digest(const void *data, size_t count, + unsigned char *md, unsigned int *size, const EVP_MD *type) + { + EVP_MD_CTX ctx; + int ret; + + FIPS_md_ctx_init(&ctx); + M_EVP_MD_CTX_set_flags(&ctx,EVP_MD_CTX_FLAG_ONESHOT); + ret=FIPS_digestinit(&ctx, type) + && FIPS_digestupdate(&ctx, data, count) + && FIPS_digestfinal(&ctx, md, size); + FIPS_md_ctx_cleanup(&ctx); + + return ret; + } + +void FIPS_md_ctx_destroy(EVP_MD_CTX *ctx) + { + FIPS_md_ctx_cleanup(ctx); + OPENSSL_free(ctx); + } + +/* This call frees resources associated with the context */ +int FIPS_md_ctx_cleanup(EVP_MD_CTX *ctx) + { + /* Don't assume ctx->md_data was cleaned in EVP_Digest_Final, + * because sometimes only copies of the context are ever finalised. + */ + if (ctx->digest && ctx->digest->cleanup + && !M_EVP_MD_CTX_test_flags(ctx,EVP_MD_CTX_FLAG_CLEANED)) + ctx->digest->cleanup(ctx); + if (ctx->digest && ctx->digest->ctx_size && ctx->md_data + && !M_EVP_MD_CTX_test_flags(ctx, EVP_MD_CTX_FLAG_REUSE)) + { + OPENSSL_cleanse(ctx->md_data,ctx->digest->ctx_size); + OPENSSL_free(ctx->md_data); + } + memset(ctx,'\0',sizeof *ctx); + + return 1; + } + +int FIPS_md_ctx_copy(EVP_MD_CTX *out, const EVP_MD_CTX *in) + { + unsigned char *tmp_buf; + if ((in == NULL) || (in->digest == NULL)) + { + EVPerr(EVP_F_EVP_MD_CTX_COPY_EX,EVP_R_INPUT_NOT_INITIALIZED); + return 0; + } + + if (out->digest == in->digest) + { + tmp_buf = out->md_data; + M_EVP_MD_CTX_set_flags(out,EVP_MD_CTX_FLAG_REUSE); + } + else tmp_buf = NULL; + FIPS_md_ctx_cleanup(out); + memcpy(out,in,sizeof *out); + + if (in->md_data && out->digest->ctx_size) + { + if (tmp_buf) + out->md_data = tmp_buf; + else + { + out->md_data=OPENSSL_malloc(out->digest->ctx_size); + if (!out->md_data) + { + EVPerr(EVP_F_EVP_MD_CTX_COPY_EX,ERR_R_MALLOC_FAILURE); + return 0; + } + } + memcpy(out->md_data,in->md_data,out->digest->ctx_size); + } + + out->update = in->update; + + if (out->digest->copy) + return out->digest->copy(out,in); + + return 1; + } |