greenplumn crypt 源码
greenplumn crypt 代码
文件路径：/src/include/libpq/crypt.h
/*-------------------------------------------------------------------------
*
* crypt.h
* Interface to libpq/crypt.c
*
* Portions Copyright (c) 1996-2019, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* src/include/libpq/crypt.h
*
*-------------------------------------------------------------------------
*/
#ifndef PG_CRYPT_H
#define PG_CRYPT_H
#include "datatype/timestamp.h"
/*
* Types of password hashes or verifiers.
*
* Plaintext passwords can be passed in by the user, in a CREATE/ALTER USER
* command. They will be encrypted to MD5 or SCRAM-SHA-256 format, before
* storing on-disk, so only MD5 and SCRAM-SHA-256 passwords should appear
* in pg_authid.rolpassword. They are also the allowed values for the
* password_encryption GUC.
*/
typedef enum PasswordType
{
PASSWORD_TYPE_PLAINTEXT = 0,
PASSWORD_TYPE_MD5,
PASSWORD_TYPE_SCRAM_SHA_256
} PasswordType;
extern PasswordType get_password_type(const char *shadow_pass);
extern char *encrypt_password(PasswordType target_type, const char *role,
const char *password);
extern char *get_role_password(const char *role, char **logdetail);
extern int md5_crypt_verify(const char *role, const char *shadow_pass,
const char *client_pass, const char *md5_salt,
int md5_salt_len, char **logdetail);
extern int plain_crypt_verify(const char *role, const char *shadow_pass,
const char *client_pass, char **logdetail);
#endif
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