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30 lines
582 B
30 lines
582 B
#include <stddef.h>
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#include <openssl/evp.h>
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void handleErrors(void) {
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printf("sha3 error, wow is ded\n");
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exit(1);
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}
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void sha3(const void *data, size_t length, char *hash)
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{
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EVP_MD_CTX *mdctx;
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if((mdctx = EVP_MD_CTX_new()) == NULL) {
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handleErrors();
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}
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if(1 != EVP_DigestInit_ex(mdctx, EVP_sha3_256(), NULL)) {
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handleErrors();
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}
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if(1 != EVP_DigestUpdate(mdctx, data, length)) {
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handleErrors();
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}
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/* the digest context ctx is automatically cleaned up. */
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if(1 != EVP_DigestFinal(mdctx, (unsigned char*)hash, NULL)) {
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handleErrors();
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}
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}
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