A.2. libcrypt

The behavior of the interfaces in this library is specified by the following Standards.

LSB Core - Generic [LSB]
POSIX 1003.1-2008 (ISO/IEC 9945-2009) [SUSv4]

Table A-3. libcrypt Function Interfaces

crypt(GLIBC_2.2)[SUSv4]encrypt(GLIBC_2.2)[SUSv4]setkey(GLIBC_2.2)[SUSv4]
crypt_r(GLIBC_2.2)[LSB]encrypt_r(GLIBC_2.2)[LSB]setkey_r(GLIBC_2.2)[LSB]