- [Changelog since v1.21.6](#changelog-since-v1216)
  - [Changes by Kind](#changes-by-kind-6)
    - [Feature](#feature-4)
    - [Failing Test](#failing-test)
    - [Bug or Regression](#bug-or-regression-6)
  - [Dependencies](#dependencies-7)
    - [Added](#added-7)
    - [Changed](#changed-7)
    - [Removed](#removed-7)
- [v1.21.6](#v1216)
  - [Downloads for v1.21.6](#downloads-for-v1216)
    - [Source Code](#source-code-8)

:8], s1) byteorder.BEPutUint32(dst[8:12], s2) byteorder.BEPutUint32(dst[12:16], s3) } // Decrypt one block from src into dst, using the expanded key xk. func decryptBlockGeneric(c *blockExpanded, dst, src []byte) { checkGenericIsExpect() xk := c.dec[:] _ = src[15] // early bounds check s0 := byteorder.BEUint32(src[0:4]) s1 := byteorder.BEUint32(src[4:8]) s2 := byteorder.BEUint32(src[8:12]) s3 := byteorder.BEUint32(src[12:16]) // First round just XORs input with key. s0 ^= xk[0] s1 ^= xk[1] s2 ^=...