46 lines
1 KiB
C
46 lines
1 KiB
C
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#include <stdio.h>
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#include <openssl/evp.h>
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int main(int argc, char *argv[])
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{
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EVP_MD_CTX *mdctx;
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const EVP_MD *md;
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char mess1[] = "eyJhbGciOiJFUzI1NiIsInR5cCI6IkpXVCJ9.eyJpZCI6MSwiaXNzIjoiYXJ1bi5jb20iLCJ0aW1lX3N0ciI6Ijg6MThwbSAyNCBOb3YgMjAxNyIsIndoZXJlIjoiYWlycG9ydCJ9";
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unsigned char md_value[EVP_MAX_MD_SIZE];
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int md_len, i;
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//OpenSSL_add_all_digests();
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if(!argv[1]) {
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printf("Usage: mdtest digestname\n");
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exit(1);
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}
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md = EVP_sha256();
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if(!md) {
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printf("Unknown message digest %s\n", argv[1]);
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exit(1);
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}
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mdctx = EVP_MD_CTX_create();
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EVP_DigestInit_ex(mdctx, md, NULL);
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EVP_DigestUpdate(mdctx, mess1, strlen(mess1));
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EVP_DigestFinal_ex(mdctx, md_value, &md_len);
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EVP_MD_CTX_destroy(mdctx);
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printf("Dig: %s\n", md_value);
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printf("Dig: %d\n", md_len);
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printf("Digest is: ");
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for(i = 0; i < md_len; i++)
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printf("%02x", md_value[i]);
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printf("\n");
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d2i_ECDSA_SIG(NULL, (const unsigned char **)&md_value[0], md_len);
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/* Call this once before exit. */
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EVP_cleanup();
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exit(0);
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}
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