import t, c
from openssl.types import *

# ============================================================
# openssl/sha.vp — SHA-1 / SHA-2 一次性摘要
# 对应头文件: sha.h
#
# OpenSSL 3.x 推荐走 EVP（见 evp.vp: EVP_DigestInit_ex/Update/Final_ex），
# 这里保留传统一次性接口，方便快速算摘要。
# ============================================================

ShaDigestLength: t.CDefine = 20
Sha224DigestLength: t.CDefine = 28
Sha256DigestLength: t.CDefine = 32
Sha384DigestLength: t.CDefine = 48
Sha512DigestLength: t.CDefine = 64

# unsigned char *SHA1(const unsigned char *d, size_t n, unsigned char *md)
extern def SHA1(d: bytes, n: t.CSizeT, md: bytes) -> bytes
# unsigned char *SHA224(const unsigned char *d, size_t n, unsigned char *md)
extern def SHA224(d: bytes, n: t.CSizeT, md: bytes) -> bytes
# unsigned char *SHA256(const unsigned char *d, size_t n, unsigned char *md)
extern def SHA256(d: bytes, n: t.CSizeT, md: bytes) -> bytes
# unsigned char *SHA384(const unsigned char *d, size_t n, unsigned char *md)
extern def SHA384(d: bytes, n: t.CSizeT, md: bytes) -> bytes
# unsigned char *SHA512(const unsigned char *d, size_t n, unsigned char *md)
extern def SHA512(d: bytes, n: t.CSizeT, md: bytes) -> bytes
# SHA-3 只经 EVP 提供（EVP_sha3_256() 等，见 evp.vp）