Diffie-Hellman

Bindings for the crypto_scalarmult API. See the libsodium crypto_scalarmult docs for more information.

Constants

Buffer lengths (integer)

  • crypto_scalarmult_BYTES
  • crypto_scalarmult_SCALARBYTES

crypto_scalarmult_base

sodium-native sodium-javascript

sodium.crypto_scalarmult_base(q, n)

Creates a scalar multiplication public key based on a secret key.

  • q should be a buffer of length crypto_scalarmult_BYTES
  • n should be a buffer of length crypto_scalarmult_SCALARBYTES

The generated public key is stored in q.

crypto_scalarmult

sodium-native sodium-javascript

sodium.crypto_scalarmult(q, n, p)

Derives a shared secret from a local secret key and a remote public key.

  • q should be a buffer of length crypto_scalarmult_BYTES
  • n should be a buffer of length crypto_scalarmult_SCALARBYTES
  • p should be a buffer of length crypto_scalarmult_BYTES

The generated shared secret is stored in q.

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