/*------------------------------------------------------------------------- * * crypt.h * Interface to libpq/crypt.c * * Portions Copyright (c) 1996-2020, 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 secrets. * * 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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