sha3: fix bug in cSHAKE Clone()

Clone() made a copy of the Keccak state after invoking clone(), which is not
supported, since the "buf" slice in the Keccak state must point to the "storage"
array, and if the state is copied directly it will keep pointing to the storage
returned by clone().

Fix it by embedding a pointer to the Keccak state instead of the state itself.

Change-Id: I7d392963ec65d784a360f6c12a7935a9a9a788b5
Reviewed-by: Filippo Valsorda <>
Run-TryBot: Filippo Valsorda <>
TryBot-Result: Gobot Gobot <>
2 files changed
tree: f58b91b63b0830cd976c6e6538a56eb696ddaf5e
  1. acme/
  2. argon2/
  3. bcrypt/
  4. blake2b/
  5. blake2s/
  6. blowfish/
  7. bn256/
  8. cast5/
  9. chacha20poly1305/
  10. cryptobyte/
  11. curve25519/
  12. ed25519/
  13. hkdf/
  14. internal/
  15. md4/
  16. nacl/
  17. ocsp/
  18. openpgp/
  19. otr/
  20. pbkdf2/
  21. pkcs12/
  22. poly1305/
  23. ripemd160/
  24. salsa20/
  25. scrypt/
  26. sha3/
  27. ssh/
  28. tea/
  29. twofish/
  30. xtea/
  31. xts/
  32. .gitattributes
  33. .gitignore
  35. codereview.cfg
  38. go.mod
  39. go.sum

Go Cryptography

This repository holds supplementary Go cryptography libraries.


The easiest way to install is to run go get -u You can also manually git clone the repository to $GOPATH/src/

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