Adding in curl and openssl repos

openssl-3.4.2/demos/digest/BIO_f_md.c

@@ -0,0 +1,126 @@
+/*-
+ * Copyright 2019-2024 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the Apache License 2.0 (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
+ */
+
+/*-
+ * Example of using EVP_MD_fetch and EVP_Digest* methods to calculate
+ * a digest of static buffers
+ * You can find SHA3 test vectors from NIST here:
+ * https://csrc.nist.gov/CSRC/media/Projects/Cryptographic-Algorithm-Validation-Program/documents/sha3/sha-3bytetestvectors.zip
+ * For example, contains these lines:
+    Len = 80
+    Msg = 1ca984dcc913344370cf
+    MD = 6915ea0eeffb99b9b246a0e34daf3947852684c3d618260119a22835659e4f23d4eb66a15d0affb8e93771578f5e8f25b7a5f2a55f511fb8b96325ba2cd14816
+ * use xxd convert the hex message string to binary input for BIO_f_md:
+ * echo "1ca984dcc913344370cf" | xxd -r -p | ./BIO_f_md
+ * and then verify the output matches MD above.
+ */
+
+#include <string.h>
+#include <stdio.h>
+#include <openssl/err.h>
+#include <openssl/bio.h>
+#include <openssl/evp.h>
+
+/*-
+ * This demonstration will show how to digest data using
+ * a BIO configured with a message digest
+ * A message digest name may be passed as an argument.
+ * The default digest is SHA3-512
+ */
+
+int main(int argc, char *argv[])
+{
+    int ret = EXIT_FAILURE;
+    OSSL_LIB_CTX *library_context = NULL;
+    BIO *input = NULL;
+    BIO *bio_digest = NULL, *reading = NULL;
+    EVP_MD *md = NULL;
+    unsigned char buffer[512];
+    int digest_size;
+    char *digest_value = NULL;
+    int j;
+
+    input = BIO_new_fd(fileno(stdin), 1);
+    if (input == NULL) {
+        fprintf(stderr, "BIO_new_fd() for stdin returned NULL\n");
+        goto cleanup;
+    }
+    library_context = OSSL_LIB_CTX_new();
+    if (library_context == NULL) {
+        fprintf(stderr, "OSSL_LIB_CTX_new() returned NULL\n");
+        goto cleanup;
+    }
+
+    /*
+     * Fetch a message digest by name
+     * The algorithm name is case insensitive.
+     * See providers(7) for details about algorithm fetching
+     */
+    md = EVP_MD_fetch(library_context, "SHA3-512", NULL);
+    if (md == NULL) {
+        fprintf(stderr, "EVP_MD_fetch did not find SHA3-512.\n");
+        goto cleanup;
+    }
+    digest_size = EVP_MD_get_size(md);
+    if (digest_size <= 0) {
+        fprintf(stderr, "EVP_MD_get_size returned invalid size.\n");
+        goto cleanup;
+    }
+
+    digest_value = OPENSSL_malloc(digest_size);
+    if (digest_value == NULL) {
+        fprintf(stderr, "Can't allocate %lu bytes for the digest value.\n", (unsigned long)digest_size);
+        goto cleanup;
+    }
+    /* Make a bio that uses the digest */
+    bio_digest = BIO_new(BIO_f_md());
+    if (bio_digest == NULL) {
+        fprintf(stderr, "BIO_new(BIO_f_md()) returned NULL\n");
+        goto cleanup;
+    }
+    /* set our bio_digest BIO to digest data */
+    if (BIO_set_md(bio_digest, md) != 1) {
+           fprintf(stderr, "BIO_set_md failed.\n");
+           goto cleanup;
+    }
+    /*-
+     * We will use BIO chaining so that as we read, the digest gets updated
+     * See the man page for BIO_push
+     */
+    reading = BIO_push(bio_digest, input);
+
+    while (BIO_read(reading, buffer, sizeof(buffer)) > 0)
+        ;
+
+    /*-
+     * BIO_gets must be used to calculate the final
+     * digest value and then copy it to digest_value.
+     */
+    if (BIO_gets(bio_digest, digest_value, digest_size) != digest_size) {
+        fprintf(stderr, "BIO_gets(bio_digest) failed\n");
+        goto cleanup;
+    }
+    for (j = 0; j < digest_size; j++) {
+        fprintf(stdout, "%02x", (unsigned char)digest_value[j]);
+    }
+    fprintf(stdout, "\n");
+    ret = EXIT_SUCCESS;
+
+cleanup:
+    if (ret != EXIT_SUCCESS)
+        ERR_print_errors_fp(stderr);
+
+    OPENSSL_free(digest_value);
+    BIO_free(input);
+    BIO_free(bio_digest);
+    EVP_MD_free(md);
+    OSSL_LIB_CTX_free(library_context);
+
+    return ret;
+}

openssl-3.4.2/demos/digest/EVP_MD_demo.c

@@ -0,0 +1,182 @@
+/*-
+ * Copyright 2021-2024 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the Apache License 2.0 (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
+ */
+
+/*
+ * Example of using EVP_MD_fetch and EVP_Digest* methods to calculate
+ * a digest of static buffers
+ */
+
+#include <string.h>
+#include <stdio.h>
+#include <openssl/err.h>
+#include <openssl/evp.h>
+
+/*-
+ * This demonstration will show how to digest data using
+ * the soliloqy from Hamlet scene 1 act 3
+ * The soliloqy is split into two parts to demonstrate using EVP_DigestUpdate
+ * more than once.
+ */
+
+static const char *hamlet_1 =
+    "To be, or not to be, that is the question,\n"
+    "Whether tis nobler in the minde to suffer\n"
+    "The ſlings and arrowes of outragious fortune,\n"
+    "Or to take Armes again in a sea of troubles,\n"
+    "And by opposing, end them, to die to sleep;\n"
+    "No more, and by a sleep, to say we end\n"
+    "The heart-ache, and the thousand natural shocks\n"
+    "That flesh is heir to? tis a consumation\n"
+    "Devoutly to be wished. To die to sleep,\n"
+    "To sleepe, perchance to dreame, Aye, there's the rub,\n"
+    "For in that sleep of death what dreams may come\n"
+    "When we haue shuffled off this mortal coil\n"
+    "Must give us pause. There's the respect\n"
+    "That makes calamity of so long life:\n"
+    "For who would bear the Ships and Scorns of time,\n"
+    "The oppressor's wrong, the proud man's Contumely,\n"
+    "The pangs of dispised love, the Law's delay,\n"
+;
+static const char *hamlet_2 =
+    "The insolence of Office, and the spurns\n"
+    "That patient merit of the'unworthy takes,\n"
+    "When he himself might his Quietas make\n"
+    "With a bare bodkin? Who would fardels bear,\n"
+    "To grunt and sweat under a weary life,\n"
+    "But that the dread of something after death,\n"
+    "The undiscovered country, from whose bourn\n"
+    "No traveller returns, puzzles the will,\n"
+    "And makes us rather bear those ills we have,\n"
+    "Then fly to others we know not of?\n"
+    "Thus conscience does make cowards of us all,\n"
+    "And thus the native hue of Resolution\n"
+    "Is sickled o'er with the pale cast of Thought,\n"
+    "And enterprises of great pith and moment,\n"
+    "With this regard their currents turn awry,\n"
+    "And lose the name of Action. Soft you now,\n"
+    "The fair Ophelia? Nymph in thy Orisons\n"
+    "Be all my sins remember'd.\n"
+;
+
+/* The known value of the SHA3-512 digest of the above soliloqy */
+static const unsigned char known_answer[] = {
+    0xbb, 0x69, 0xf8, 0x09, 0x9c, 0x2e, 0x00, 0x3d,
+    0xa4, 0x29, 0x5f, 0x59, 0x4b, 0x89, 0xe4, 0xd9,
+    0xdb, 0xa2, 0xe5, 0xaf, 0xa5, 0x87, 0x73, 0x9d,
+    0x83, 0x72, 0xcf, 0xea, 0x84, 0x66, 0xc1, 0xf9,
+    0xc9, 0x78, 0xef, 0xba, 0x3d, 0xe9, 0xc1, 0xff,
+    0xa3, 0x75, 0xc7, 0x58, 0x74, 0x8e, 0x9c, 0x1d,
+    0x14, 0xd9, 0xdd, 0xd1, 0xfd, 0x24, 0x30, 0xd6,
+    0x81, 0xca, 0x8f, 0x78, 0x29, 0x19, 0x9a, 0xfe,
+};
+
+static int demonstrate_digest(void)
+{
+    OSSL_LIB_CTX *library_context;
+    int ret = 0;
+    const char *option_properties = NULL;
+    EVP_MD *message_digest = NULL;
+    EVP_MD_CTX *digest_context = NULL;
+    unsigned int digest_length;
+    unsigned char *digest_value = NULL;
+    unsigned int j;
+
+    library_context = OSSL_LIB_CTX_new();
+    if (library_context == NULL) {
+        fprintf(stderr, "OSSL_LIB_CTX_new() returned NULL\n");
+        goto cleanup;
+    }
+
+    /*
+     * Fetch a message digest by name
+     * The algorithm name is case insensitive.
+     * See providers(7) for details about algorithm fetching
+     */
+    message_digest = EVP_MD_fetch(library_context,
+                                  "SHA3-512", option_properties);
+    if (message_digest == NULL) {
+        fprintf(stderr, "EVP_MD_fetch could not find SHA3-512.");
+        goto cleanup;
+    }
+    /* Determine the length of the fetched digest type */
+    digest_length = EVP_MD_get_size(message_digest);
+    if (digest_length <= 0) {
+        fprintf(stderr, "EVP_MD_get_size returned invalid size.\n");
+        goto cleanup;
+    }
+
+    digest_value = OPENSSL_malloc(digest_length);
+    if (digest_value == NULL) {
+        fprintf(stderr, "No memory.\n");
+        goto cleanup;
+    }
+    /*
+     * Make a message digest context to hold temporary state
+     * during digest creation
+     */
+    digest_context = EVP_MD_CTX_new();
+    if (digest_context == NULL) {
+        fprintf(stderr, "EVP_MD_CTX_new failed.\n");
+        goto cleanup;
+    }
+    /*
+     * Initialize the message digest context to use the fetched
+     * digest provider
+     */
+    if (EVP_DigestInit(digest_context, message_digest) != 1) {
+        fprintf(stderr, "EVP_DigestInit failed.\n");
+        goto cleanup;
+    }
+    /* Digest parts one and two of the soliloqy */
+    if (EVP_DigestUpdate(digest_context, hamlet_1, strlen(hamlet_1)) != 1) {
+        fprintf(stderr, "EVP_DigestUpdate(hamlet_1) failed.\n");
+        goto cleanup;
+    }
+    if (EVP_DigestUpdate(digest_context, hamlet_2, strlen(hamlet_2)) != 1) {
+        fprintf(stderr, "EVP_DigestUpdate(hamlet_2) failed.\n");
+        goto cleanup;
+    }
+    if (EVP_DigestFinal(digest_context, digest_value, &digest_length) != 1) {
+        fprintf(stderr, "EVP_DigestFinal() failed.\n");
+        goto cleanup;
+    }
+    for (j=0; j<digest_length; j++)  {
+        fprintf(stdout, "%02x", digest_value[j]);
+    }
+    fprintf(stdout, "\n");
+    /* Check digest_value against the known answer */
+    if ((size_t)digest_length != sizeof(known_answer)) {
+        fprintf(stdout, "Digest length(%d) not equal to known answer length(%lu).\n",
+            digest_length, sizeof(known_answer));
+    } else if (memcmp(digest_value, known_answer, digest_length) != 0) {
+        for (j=0; j<sizeof(known_answer); j++) {
+            fprintf(stdout, "%02x", known_answer[j] );
+        }
+        fprintf(stdout, "\nDigest does not match known answer\n");
+    } else {
+        fprintf(stdout, "Digest computed properly.\n");
+        ret = 1;
+    }
+
+cleanup:
+    if (ret != 1)
+        ERR_print_errors_fp(stderr);
+    /* OpenSSL free functions will ignore NULL arguments */
+    EVP_MD_CTX_free(digest_context);
+    OPENSSL_free(digest_value);
+    EVP_MD_free(message_digest);
+
+    OSSL_LIB_CTX_free(library_context);
+    return ret;
+}
+
+int main(void)
+{
+    return demonstrate_digest() ? EXIT_SUCCESS : EXIT_FAILURE;
+}

openssl-3.4.2/demos/digest/EVP_MD_stdin.c

@@ -0,0 +1,136 @@
+/*-
+ * Copyright 2019-2024 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the Apache License 2.0 (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
+ */
+
+/*-
+ * Example of using EVP_MD_fetch and EVP_Digest* methods to calculate
+ * a digest of static buffers
+ * You can find SHA3 test vectors from NIST here:
+ * https://csrc.nist.gov/CSRC/media/Projects/Cryptographic-Algorithm-Validation-Program/documents/sha3/sha-3bytetestvectors.zip
+ * For example, contains these lines:
+    Len = 80
+    Msg = 1ca984dcc913344370cf
+    MD = 6915ea0eeffb99b9b246a0e34daf3947852684c3d618260119a22835659e4f23d4eb66a15d0affb8e93771578f5e8f25b7a5f2a55f511fb8b96325ba2cd14816
+ * use xxd convert the hex message string to binary input for EVP_MD_stdin:
+ * echo "1ca984dcc913344370cf" | xxd -r -p | ./EVP_MD_stdin
+ * and then verify the output matches MD above.
+ */
+
+#include <string.h>
+#include <stdio.h>
+#include <openssl/err.h>
+#include <openssl/evp.h>
+
+/*-
+ * This demonstration will show how to digest data using
+ * a BIO created to read from stdin
+ */
+
+static int demonstrate_digest(BIO *input)
+{
+    OSSL_LIB_CTX *library_context = NULL;
+    int ret = 0;
+    const char *option_properties = NULL;
+    EVP_MD *message_digest = NULL;
+    EVP_MD_CTX *digest_context = NULL;
+    unsigned int digest_length;
+    unsigned char *digest_value = NULL;
+    unsigned char buffer[512];
+    unsigned int ii;
+
+    library_context = OSSL_LIB_CTX_new();
+    if (library_context == NULL) {
+        fprintf(stderr, "OSSL_LIB_CTX_new() returned NULL\n");
+        goto cleanup;
+    }
+
+    /*
+     * Fetch a message digest by name
+     * The algorithm name is case insensitive.
+     * See providers(7) for details about algorithm fetching
+     */
+    message_digest = EVP_MD_fetch(library_context,
+                                  "SHA3-512", option_properties);
+    if (message_digest == NULL) {
+        fprintf(stderr, "EVP_MD_fetch could not find SHA3-512.");
+        ERR_print_errors_fp(stderr);
+        OSSL_LIB_CTX_free(library_context);
+        return 0;
+    }
+    /* Determine the length of the fetched digest type */
+    digest_length = EVP_MD_get_size(message_digest);
+    if (digest_length <= 0) {
+        fprintf(stderr, "EVP_MD_get_size returned invalid size.\n");
+        goto cleanup;
+    }
+
+    digest_value = OPENSSL_malloc(digest_length);
+    if (digest_value == NULL) {
+        fprintf(stderr, "No memory.\n");
+        goto cleanup;
+    }
+    /*
+     * Make a message digest context to hold temporary state
+     * during digest creation
+     */
+    digest_context = EVP_MD_CTX_new();
+    if (digest_context == NULL) {
+        fprintf(stderr, "EVP_MD_CTX_new failed.\n");
+        ERR_print_errors_fp(stderr);
+        goto cleanup;
+    }
+    /*
+     * Initialize the message digest context to use the fetched
+     * digest provider
+     */
+    if (EVP_DigestInit(digest_context, message_digest) != 1) {
+        fprintf(stderr, "EVP_DigestInit failed.\n");
+        ERR_print_errors_fp(stderr);
+        goto cleanup;
+    }
+    while ((ii = BIO_read(input, buffer, sizeof(buffer))) > 0) {
+        if (EVP_DigestUpdate(digest_context, buffer, ii) != 1) {
+            fprintf(stderr, "EVP_DigestUpdate() failed.\n");
+            goto cleanup;
+        }
+    }
+    if (EVP_DigestFinal(digest_context, digest_value, &digest_length) != 1) {
+        fprintf(stderr, "EVP_DigestFinal() failed.\n");
+        goto cleanup;
+    }
+    ret = 1;
+    for (ii=0; ii<digest_length; ii++) {
+        fprintf(stdout, "%02x", digest_value[ii]);
+    }
+    fprintf(stdout, "\n");
+
+cleanup:
+    if (ret != 1)
+        ERR_print_errors_fp(stderr);
+    /* OpenSSL free functions will ignore NULL arguments */
+    EVP_MD_CTX_free(digest_context);
+    OPENSSL_free(digest_value);
+    EVP_MD_free(message_digest);
+
+    OSSL_LIB_CTX_free(library_context);
+    return ret;
+}
+
+int main(void)
+{
+    int ret = EXIT_FAILURE;
+    BIO *input = BIO_new_fd(fileno(stdin), 1);
+
+    if (input != NULL) {
+        ret = (demonstrate_digest(input) ? EXIT_SUCCESS : EXIT_FAILURE);
+        BIO_free(input);
+    }
+    if (ret != EXIT_SUCCESS)
+        ERR_print_errors_fp(stderr);
+    return ret;
+}

openssl-3.4.2/demos/digest/EVP_MD_xof.c

@@ -0,0 +1,132 @@
+/*-
+ * Copyright 2022-2024 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the Apache License 2.0 (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 <string.h>
+#include <openssl/err.h>
+#include <openssl/evp.h>
+#include <openssl/core_names.h>
+
+/*
+ * Example of using an extendable-output hash function (XOF). A XOF is a hash
+ * function with configurable output length and which can generate an
+ * arbitrarily large output.
+ *
+ * This example uses SHAKE256, an extendable output variant of SHA3 (Keccak).
+ *
+ * To generate different output lengths, you can pass a single integer argument
+ * on the command line, which is the output size in bytes. By default, a 20-byte
+ * output is generated and (for this length only) a known answer test is
+ * performed.
+ */
+
+/* Our input to the XOF hash function. */
+static const char message[] = "This is a test message.";
+
+/* Expected output when an output length of 20 bytes is used. */
+static const unsigned char known_answer[] = {
+  0x52, 0x97, 0x93, 0x78, 0x27, 0x58, 0x7d, 0x62,
+  0x8b, 0x00, 0x25, 0xb5, 0xec, 0x39, 0x5e, 0x2d,
+  0x7f, 0x3e, 0xd4, 0x19
+};
+
+/*
+ * A property query used for selecting the SHAKE256 implementation.
+ */
+static const char *propq = NULL;
+
+int main(int argc, char **argv)
+{
+    int ret = EXIT_FAILURE;
+    OSSL_LIB_CTX *libctx = NULL;
+    EVP_MD *md = NULL;
+    EVP_MD_CTX *ctx = NULL;
+    unsigned int digest_len = 20;
+    int digest_len_i;
+    unsigned char *digest = NULL;
+
+    /* Allow digest length to be changed for demonstration purposes. */
+    if (argc > 1) {
+        digest_len_i = atoi(argv[1]);
+        if (digest_len_i <= 0) {
+            fprintf(stderr, "Specify a non-negative digest length\n");
+            goto end;
+        }
+
+        digest_len = (unsigned int)digest_len_i;
+    }
+
+    /*
+     * Retrieve desired algorithm. This must be a hash algorithm which supports
+     * XOF.
+     */
+    md = EVP_MD_fetch(libctx, "SHAKE256", propq);
+    if (md == NULL) {
+        fprintf(stderr, "Failed to retrieve SHAKE256 algorithm\n");
+        goto end;
+    }
+
+    /* Create context. */
+    ctx = EVP_MD_CTX_new();
+    if (ctx == NULL) {
+        fprintf(stderr, "Failed to create digest context\n");
+        goto end;
+    }
+
+    /* Initialize digest context. */
+    if (EVP_DigestInit(ctx, md) == 0) {
+        fprintf(stderr, "Failed to initialize digest\n");
+        goto end;
+    }
+
+    /*
+     * Feed our message into the digest function.
+     * This may be called multiple times.
+     */
+    if (EVP_DigestUpdate(ctx, message, sizeof(message)) == 0) {
+        fprintf(stderr, "Failed to hash input message\n");
+        goto end;
+    }
+
+    /* Allocate enough memory for our digest length. */
+    digest = OPENSSL_malloc(digest_len);
+    if (digest == NULL) {
+        fprintf(stderr, "Failed to allocate memory for digest\n");
+        goto end;
+    }
+
+    /* Get computed digest. The digest will be of whatever length we specify. */
+    if (EVP_DigestFinalXOF(ctx, digest, digest_len) == 0) {
+        fprintf(stderr, "Failed to finalize hash\n");
+        goto end;
+    }
+
+    printf("Output digest:\n");
+    BIO_dump_indent_fp(stdout, digest, digest_len, 2);
+
+    /* If digest length is 20 bytes, check it matches our known answer. */
+    if (digest_len == 20) {
+        /*
+         * Always use a constant-time function such as CRYPTO_memcmp
+         * when comparing cryptographic values. Do not use memcmp(3).
+         */
+        if (CRYPTO_memcmp(digest, known_answer, sizeof(known_answer)) != 0) {
+            fprintf(stderr, "Output does not match expected result\n");
+            goto end;
+        }
+    }
+
+    ret = EXIT_SUCCESS;
+end:
+    OPENSSL_free(digest);
+    EVP_MD_CTX_free(ctx);
+    EVP_MD_free(md);
+    OSSL_LIB_CTX_free(libctx);
+    return ret;
+}

openssl-3.4.2/demos/digest/Makefile

@@ -0,0 +1,37 @@
+#
+# To run the demos when linked with a shared library (default) ensure
+# that libcrypto is on the library path. For example:
+#
+#    LD_LIBRARY_PATH=../.. ./EVP_MD_demo
+
+TESTS = EVP_MD_demo \
+        EVP_MD_stdin \
+        EVP_MD_xof \
+        BIO_f_md
+
+CFLAGS  = -I../../include -g -Wall
+LDFLAGS = -L../..
+LDLIBS  = -lcrypto
+
+all: $(TESTS)
+
+EVP_MD_demo: EVP_MD_demo.o
+EVP_MD_stdin: EVP_MD_stdin.o
+EVP_MD_xof: EVP_MD_xof.o
+BIO_f_md: BIO_f_md.o
+
+$(TESTS):
+	$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $< $(LDLIBS)
+
+clean:
+	$(RM) *.o $(TESTS)
+
+.PHONY: test
+# Since some of these tests use stdin, we use the source file as stdin
+# when running the tests
+test: all
+	@echo "\nDigest tests:"
+	@set -e; for tst in $(TESTS); do \
+		echo "\n"$$tst; \
+		cat $$tst.c | ./$$tst; \
+	done

openssl-3.4.2/demos/digest/build.info

@@ -0,0 +1,20 @@
+PROGRAMS{noinst} = EVP_MD_demo \
+                   EVP_MD_stdin \
+                   EVP_MD_xof \
+                   BIO_f_md
+
+INCLUDE[EVP_MD_demo]=../../include
+SOURCE[EVP_MD_demo]=EVP_MD_demo.c
+DEPEND[EVP_MD_demo]=../../libcrypto
+
+INCLUDE[EVP_MD_stdin]=../../include
+SOURCE[EVP_MD_stdin]=EVP_MD_stdin.c
+DEPEND[EVP_MD_stdin]=../../libcrypto
+
+INCLUDE[EVP_MD_xof]=../../include
+SOURCE[EVP_MD_xof]=EVP_MD_xof.c
+DEPEND[EVP_MD_xof]=../../libcrypto
+
+INCLUDE[BIO_f_md]=../../include
+SOURCE[BIO_f_md]=BIO_f_md.c
+DEPEND[BIO_f_md]=../../libcrypto