Ciphers: Blowfish, modes: ECB, CBC

modulename: blowfish-x86_64.ko

configname: CONFIG_CRYPTO_BLOWFISH_X86_64

Linux Kernel Configuration
└─>Accelerated Cryptographic Algorithms for CPU (x86)
└─>Ciphers: Blowfish, modes: ECB, CBC
In linux kernel since version 3.1 (release Date: 2011-10-24)  
Block cipher: Blowfish cipher algorithm
Length-preserving ciphers: Blowfish with ECB and CBC modes

Architecture: x86_64

source code:
/arch/x86/crypto/