EVP_SHA3_224(3) | Library Functions Manual | EVP_SHA3_224(3)

# NAME

`EVP_sha3_224`, `EVP_sha3_256`, `EVP_sha3_384`, `EVP_sha3_512` — Secure Hash Algorithm 3 for EVP

# SYNOPSIS

library “libcrypto”
`#include <openssl/evp.h>`

const EVP_MD *
`EVP_sha3_224`(void);

const EVP_MD *
`EVP_sha3_256`(void);

const EVP_MD *
`EVP_sha3_384`(void);

const EVP_MD *
`EVP_sha3_512`(void);

# DESCRIPTION

SHA-3 (Secure Hash Algorithm 3) is a family of cryptographic hash functions standardized in NIST FIPS 202, first published in 2015. It is based on the Keccak algorithm.

`EVP_sha3_224`(), `EVP_sha3_256`(), `EVP_sha3_384`(), and `EVP_sha3_512`() implement the SHA3-224, SHA3-256, SHA3-384, and SHA3-512 algorithms and produce 224, 256, 384 and 512 bits of output from a given input, respectively.

# RETURN VALUES

These functions return pointers to static EVP_MD objects implementing the hash functions.

# SEE ALSO

evp(3), EVP_DigestInit(3)

# STANDARDS

NIST FIPS 202

June 8, 2025 | Debian