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Expose libsodium's Ristretto255 API #6922

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Merged
merged 3 commits into from
May 7, 2021
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Expose libsodium's Ristretto255 API #6922

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fbcb295
Expose libsodium's Ristretto255 API
paragonie-security Apr 28, 2021
1ada95d
Update UPGRADING to document sodium changes
paragonie-security May 7, 2021
b7a6613
Implement suggested changes from Nikita's code review
paragonie-security May 7, 2021
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28 changes: 28 additions & 0 deletions UPGRADING
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Expand Up @@ -298,6 +298,34 @@ PHP 8.1 UPGRADE NOTES
flush its buffers to physical storage.
RFC: https://wiki.php.net/rfc/fsync_function

- Sodium:
. Added the XChaCha20 stream cipher interface functions:

- sodium_crypto_stream_xchacha20()
- sodium_crypto_stream_xchacha20_keygen()
- sodium_crypto_stream_xchacha20_xor()

. Added the Ristretto255 functions, which are available in libsodium 1.0.18.

Ristretto is a technique for constructing prime order elliptic curve groups with non-malleable encodings.
Ristretto255 implements Ristretto atop Curve25519.

- sodium_crypto_core_ristretto255_add()
- sodium_crypto_core_ristretto255_from_hash()
- sodium_crypto_core_ristretto255_is_valid_point()
- sodium_crypto_core_ristretto255_random()
- sodium_crypto_core_ristretto255_scalar_add()
- sodium_crypto_core_ristretto255_scalar_complement()
- sodium_crypto_core_ristretto255_scalar_invert()
- sodium_crypto_core_ristretto255_scalar_mul()
- sodium_crypto_core_ristretto255_scalar_negate()
- sodium_crypto_core_ristretto255_scalar_random()
- sodium_crypto_core_ristretto255_scalar_reduce()
- sodium_crypto_core_ristretto255_scalar_sub()
- sodium_crypto_core_ristretto255_sub()
- sodium_crypto_scalarmult_ristretto255()
- sodium_crypto_scalarmult_ristretto255_base()

========================================
7. New Classes and Interfaces
========================================
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