+static void blowfish_lsb_encrypt_cbc(unsigned char *blk, int len,
+ BlowfishContext * ctx)
+{
+ word32 xL, xR, out[2], iv0, iv1;
+
+ assert((len & 7) == 0);
+
+ iv0 = ctx->iv0;
+ iv1 = ctx->iv1;
+
+ while (len > 0) {
+ xL = GET_32BIT_LSB_FIRST(blk);
+ xR = GET_32BIT_LSB_FIRST(blk + 4);
+ iv0 ^= xL;
+ iv1 ^= xR;
+ blowfish_encrypt(iv0, iv1, out, ctx);
+ iv0 = out[0];
+ iv1 = out[1];
+ PUT_32BIT_LSB_FIRST(blk, iv0);
+ PUT_32BIT_LSB_FIRST(blk + 4, iv1);
+ blk += 8;
+ len -= 8;
+ }
+
+ ctx->iv0 = iv0;
+ ctx->iv1 = iv1;
+}
+
+static void blowfish_lsb_decrypt_cbc(unsigned char *blk, int len,
+ BlowfishContext * ctx)
+{
+ word32 xL, xR, out[2], iv0, iv1;
+
+ assert((len & 7) == 0);
+
+ iv0 = ctx->iv0;
+ iv1 = ctx->iv1;
+
+ while (len > 0) {
+ xL = GET_32BIT_LSB_FIRST(blk);
+ xR = GET_32BIT_LSB_FIRST(blk + 4);
+ blowfish_decrypt(xL, xR, out, ctx);
+ iv0 ^= out[0];
+ iv1 ^= out[1];
+ PUT_32BIT_LSB_FIRST(blk, iv0);
+ PUT_32BIT_LSB_FIRST(blk + 4, iv1);
+ iv0 = xL;
+ iv1 = xR;
+ blk += 8;
+ len -= 8;
+ }
+
+ ctx->iv0 = iv0;
+ ctx->iv1 = iv1;
+}
+
+static void blowfish_msb_encrypt_cbc(unsigned char *blk, int len,
+ BlowfishContext * ctx)
+{