2  * cast6.c - Cast6 cipher algorithm [rfc2612].
8  * Copyright (C) 2003 Kartikey Mahendra Bhatt <kartik_me@hotmail.com>.
106 	key[3] ^= F1(key[4], Tr[i % 4][3], Tm[i][3]);  in W()
107 	key[2] ^= F2(key[3], Tr[i % 4][4], Tm[i][4]);  in W()
113 int __cast6_setkey(struct cast6_ctx *c, const u8 *in_key,  in __cast6_setkey()  argument
130 	key[2] = be32_to_cpu(p_key[2]);		/* C */  in __cast6_setkey()
131 	key[3] = be32_to_cpu(p_key[3]);		/* D */  in __cast6_setkey()
141 		c->Kr[i][0] = key[0] & 0x1f;  in __cast6_setkey()
142 		c->Kr[i][1] = key[2] & 0x1f;  in __cast6_setkey()
143 		c->Kr[i][2] = key[4] & 0x1f;  in __cast6_setkey()
144 		c->Kr[i][3] = key[6] & 0x1f;  in __cast6_setkey()
146 		c->Km[i][0] = key[7];  in __cast6_setkey()
147 		c->Km[i][1] = key[5];  in __cast6_setkey()
148 		c->Km[i][2] = key[3];  in __cast6_setkey()
149 		c->Km[i][3] = key[1];  in __cast6_setkey()
167 	block[2] ^= F1(block[3], Kr[0], Km[0]);  in Q()
170 	block[3] ^= F1(block[0], Kr[3], Km[3]);  in Q()
177 	block[3] ^= F1(block[0], Kr[3], Km[3]);  in QBAR()
180 	block[2] ^= F1(block[3], Kr[0], Km[0]);  in QBAR()
183 void __cast6_encrypt(struct cast6_ctx *c, u8 *outbuf, const u8 *inbuf)  in __cast6_encrypt()  argument
194 	block[3] = be32_to_cpu(src[3]);  in __cast6_encrypt()
196 	Km = c->Km[0]; Kr = c->Kr[0]; Q(block, Kr, Km);  in __cast6_encrypt()
197 	Km = c->Km[1]; Kr = c->Kr[1]; Q(block, Kr, Km);  in __cast6_encrypt()
198 	Km = c->Km[2]; Kr = c->Kr[2]; Q(block, Kr, Km);  in __cast6_encrypt()
199 	Km = c->Km[3]; Kr = c->Kr[3]; Q(block, Kr, Km);  in __cast6_encrypt()
200 	Km = c->Km[4]; Kr = c->Kr[4]; Q(block, Kr, Km);  in __cast6_encrypt()
201 	Km = c->Km[5]; Kr = c->Kr[5]; Q(block, Kr, Km);  in __cast6_encrypt()
202 	Km = c->Km[6]; Kr = c->Kr[6]; QBAR(block, Kr, Km);  in __cast6_encrypt()
203 	Km = c->Km[7]; Kr = c->Kr[7]; QBAR(block, Kr, Km);  in __cast6_encrypt()
204 	Km = c->Km[8]; Kr = c->Kr[8]; QBAR(block, Kr, Km);  in __cast6_encrypt()
205 	Km = c->Km[9]; Kr = c->Kr[9]; QBAR(block, Kr, Km);  in __cast6_encrypt()
206 	Km = c->Km[10]; Kr = c->Kr[10]; QBAR(block, Kr, Km);  in __cast6_encrypt()
207 	Km = c->Km[11]; Kr = c->Kr[11]; QBAR(block, Kr, Km);  in __cast6_encrypt()
212 	dst[3] = cpu_to_be32(block[3]);  in __cast6_encrypt()
221 void __cast6_decrypt(struct cast6_ctx *c, u8 *outbuf, const u8 *inbuf)  in __cast6_decrypt()  argument
232 	block[3] = be32_to_cpu(src[3]);  in __cast6_decrypt()
234 	Km = c->Km[11]; Kr = c->Kr[11]; Q(block, Kr, Km);  in __cast6_decrypt()
235 	Km = c->Km[10]; Kr = c->Kr[10]; Q(block, Kr, Km);  in __cast6_decrypt()
236 	Km = c->Km[9]; Kr = c->Kr[9]; Q(block, Kr, Km);  in __cast6_decrypt()
237 	Km = c->Km[8]; Kr = c->Kr[8]; Q(block, Kr, Km);  in __cast6_decrypt()
238 	Km = c->Km[7]; Kr = c->Kr[7]; Q(block, Kr, Km);  in __cast6_decrypt()
239 	Km = c->Km[6]; Kr = c->Kr[6]; Q(block, Kr, Km);  in __cast6_decrypt()
240 	Km = c->Km[5]; Kr = c->Kr[5]; QBAR(block, Kr, Km);  in __cast6_decrypt()
241 	Km = c->Km[4]; Kr = c->Kr[4]; QBAR(block, Kr, Km);  in __cast6_decrypt()
242 	Km = c->Km[3]; Kr = c->Kr[3]; QBAR(block, Kr, Km);  in __cast6_decrypt()
243 	Km = c->Km[2]; Kr = c->Kr[2]; QBAR(block, Kr, Km);  in __cast6_decrypt()
244 	Km = c->Km[1]; Kr = c->Kr[1]; QBAR(block, Kr, Km);  in __cast6_decrypt()
245 	Km = c->Km[0]; Kr = c->Kr[0]; QBAR(block, Kr, Km);  in __cast6_decrypt()
250 	dst[3] = cpu_to_be32(block[3]);  in __cast6_decrypt()
266 	.cra_alignmask = 3,