cast6_ctx 17 include/crypto/cast6.h int __cast6_setkey(struct cast6_ctx *ctx, const u8 *key, cast6_ctx 21 include/crypto/cast6.h void __cast6_encrypt(struct cast6_ctx *ctx, u8 *dst, const u8 *src); cast6_ctx 22 include/crypto/cast6.h void __cast6_decrypt(struct cast6_ctx *ctx, u8 *dst, const u8 *src);