# Sodium Functions

## Table of Contents

- sodium_add — Add large numbers
- sodium_base642bin — Decodes a base64-encoded string into raw binary.
- sodium_bin2base64 — Encodes a raw binary string with base64.
- sodium_bin2hex — Encode to hexadecimal
- sodium_compare — Compare large numbers
- sodium_crypto_aead_aegis128l_decrypt — Verify then decrypt a message with AEGIS-128L
- sodium_crypto_aead_aegis128l_encrypt — Encrypt then authenticate a message with AEGIS-128L
- sodium_crypto_aead_aegis128l_keygen — Generate a random AEGIS-128L key
- sodium_crypto_aead_aegis256_decrypt — Verify then decrypt a message with AEGIS-256
- sodium_crypto_aead_aegis256_encrypt — Encrypt then authenticate a message with AEGIS-256
- sodium_crypto_aead_aegis256_keygen — Generate a random AEGIS-256 key
- sodium_crypto_aead_aes256gcm_decrypt — Verify then decrypt a message with AES-256-GCM
- sodium_crypto_aead_aes256gcm_encrypt — Encrypt then authenticate with AES-256-GCM
- sodium_crypto_aead_aes256gcm_is_available — Check if hardware supports AES256-GCM
- sodium_crypto_aead_aes256gcm_keygen — Generate a random AES-256-GCM key
- sodium_crypto_aead_chacha20poly1305_decrypt — Verify then decrypt with ChaCha20-Poly1305
- sodium_crypto_aead_chacha20poly1305_encrypt — Encrypt then authenticate with ChaCha20-Poly1305
- sodium_crypto_aead_chacha20poly1305_ietf_decrypt — Verify that the ciphertext includes a valid tag
- sodium_crypto_aead_chacha20poly1305_ietf_encrypt — Encrypt a message
- sodium_crypto_aead_chacha20poly1305_ietf_keygen — Generate a random ChaCha20-Poly1305 (IETF) key.
- sodium_crypto_aead_chacha20poly1305_keygen — Generate a random ChaCha20-Poly1305 key.
- sodium_crypto_aead_xchacha20poly1305_ietf_decrypt — (Preferred) Verify then decrypt with XChaCha20-Poly1305
- sodium_crypto_aead_xchacha20poly1305_ietf_encrypt — (Preferred) Encrypt then authenticate with XChaCha20-Poly1305
- sodium_crypto_aead_xchacha20poly1305_ietf_keygen — Generate a random XChaCha20-Poly1305 key.
- sodium_crypto_auth — Compute a tag for the message
- sodium_crypto_auth_keygen — Generate a random key for sodium_crypto_auth
- sodium_crypto_auth_verify — Verifies that the tag is valid for the message
- sodium_crypto_box — Authenticated public-key encryption
- sodium_crypto_box_keypair — Randomly generate a secret key and a corresponding public key
- sodium_crypto_box_keypair_from_secretkey_and_publickey — Create a unified keypair string from a secret key and public key
- sodium_crypto_box_open — Authenticated public-key decryption
- sodium_crypto_box_publickey — Extract the public key from a crypto_box keypair
- sodium_crypto_box_publickey_from_secretkey — Calculate the public key from a secret key
- sodium_crypto_box_seal — Anonymous public-key encryption
- sodium_crypto_box_seal_open — Anonymous public-key decryption
- sodium_crypto_box_secretkey — Extracts the secret key from a crypto_box keypair
- sodium_crypto_box_seed_keypair — Deterministically derive the key pair from a single key
- sodium_crypto_core_ristretto255_add — Adds an element
- sodium_crypto_core_ristretto255_from_hash — Maps a vector
- sodium_crypto_core_ristretto255_is_valid_point — Determines if a point on the ristretto255 curve
- sodium_crypto_core_ristretto255_random — Generates a random key
- sodium_crypto_core_ristretto255_scalar_add — Adds a scalar value
- sodium_crypto_core_ristretto255_scalar_complement — The sodium_crypto_core_ristretto255_scalar_complement purpose
- sodium_crypto_core_ristretto255_scalar_invert — Inverts a scalar value
- sodium_crypto_core_ristretto255_scalar_mul — Multiplies a scalar value
- sodium_crypto_core_ristretto255_scalar_negate — Negates a scalar value
- sodium_crypto_core_ristretto255_scalar_random — Generates a random key
- sodium_crypto_core_ristretto255_scalar_reduce — Reduces a scalar value
- sodium_crypto_core_ristretto255_scalar_sub — Subtracts a scalar value
- sodium_crypto_core_ristretto255_sub — Subtracts an element
- sodium_crypto_generichash — Get a hash of the message
- sodium_crypto_generichash_final — Complete the hash
- sodium_crypto_generichash_init — Initialize a hash for streaming
- sodium_crypto_generichash_keygen — Generate a random generichash key
- sodium_crypto_generichash_update — Add message to a hash
- sodium_crypto_kdf_derive_from_key — Derive a subkey
- sodium_crypto_kdf_keygen — Generate a random root key for the KDF interface
- sodium_crypto_kx_client_session_keys — Calculate the client-side session keys.
- sodium_crypto_kx_keypair — Creates a new sodium keypair
- sodium_crypto_kx_publickey — Extract the public key from a crypto_kx keypair
- sodium_crypto_kx_secretkey — Extract the secret key from a crypto_kx keypair.
- sodium_crypto_kx_seed_keypair — Description
- sodium_crypto_kx_server_session_keys — Calculate the server-side session keys.
- sodium_crypto_pwhash — Derive a key from a password, using Argon2
- sodium_crypto_pwhash_scryptsalsa208sha256 — Derives a key from a password, using scrypt
- sodium_crypto_pwhash_scryptsalsa208sha256_str — Get an ASCII encoded hash
- sodium_crypto_pwhash_scryptsalsa208sha256_str_verify — Verify that the password is a valid password verification string
- sodium_crypto_pwhash_str — Get an ASCII-encoded hash
- sodium_crypto_pwhash_str_needs_rehash — Determine whether or not to rehash a password
- sodium_crypto_pwhash_str_verify — Verifies that a password matches a hash
- sodium_crypto_scalarmult — Compute a shared secret given a user's secret key and another user's public key
- sodium_crypto_scalarmult_base — Alias of sodium_crypto_box_publickey_from_secretkey
- sodium_crypto_scalarmult_ristretto255 — Computes a shared secret
- sodium_crypto_scalarmult_ristretto255_base — Calculates the public key from a secret key
- sodium_crypto_secretbox — Authenticated shared-key encryption
- sodium_crypto_secretbox_keygen — Generate random key for sodium_crypto_secretbox
- sodium_crypto_secretbox_open — Authenticated shared-key decryption
- sodium_crypto_secretstream_xchacha20poly1305_init_pull — Initialize a secretstream context for decryption
- sodium_crypto_secretstream_xchacha20poly1305_init_push — Initialize a secretstream context for encryption
- sodium_crypto_secretstream_xchacha20poly1305_keygen — Generate a random secretstream key.
- sodium_crypto_secretstream_xchacha20poly1305_pull — Decrypt a chunk of data from an encrypted stream
- sodium_crypto_secretstream_xchacha20poly1305_push — Encrypt a chunk of data so that it can safely be decrypted in a streaming API
- sodium_crypto_secretstream_xchacha20poly1305_rekey — Explicitly rotate the key in the secretstream state
- sodium_crypto_shorthash — Compute a short hash of a message and key
- sodium_crypto_shorthash_keygen — Get random bytes for key
- sodium_crypto_sign — Sign a message
- sodium_crypto_sign_detached — Sign the message
- sodium_crypto_sign_ed25519_pk_to_curve25519 — Convert an Ed25519 public key to a Curve25519 public key
- sodium_crypto_sign_ed25519_sk_to_curve25519 — Convert an Ed25519 secret key to a Curve25519 secret key
- sodium_crypto_sign_keypair — Randomly generate a secret key and a corresponding public key
- sodium_crypto_sign_keypair_from_secretkey_and_publickey — Join a secret key and public key together
- sodium_crypto_sign_open — Check that the signed message has a valid signature
- sodium_crypto_sign_publickey — Extract the Ed25519 public key from a keypair
- sodium_crypto_sign_publickey_from_secretkey — Extract the Ed25519 public key from the secret key
- sodium_crypto_sign_secretkey — Extract the Ed25519 secret key from a keypair
- sodium_crypto_sign_seed_keypair — Deterministically derive the key pair from a single key
- sodium_crypto_sign_verify_detached — Verify signature for the message
- sodium_crypto_stream — Generate a deterministic sequence of bytes from a seed
- sodium_crypto_stream_keygen — Generate a random sodium_crypto_stream key.
- sodium_crypto_stream_xchacha20 — Expands the key and nonce into a keystream of pseudorandom bytes
- sodium_crypto_stream_xchacha20_keygen — Returns a secure random key
- sodium_crypto_stream_xchacha20_xor — Encrypts a message using a nonce and a secret key (no authentication)
- sodium_crypto_stream_xchacha20_xor_ic — Encrypts a message using a nonce and a secret key (no authentication)
- sodium_crypto_stream_xor — Encrypt a message without authentication
- sodium_hex2bin — Decodes a hexadecimally encoded binary string
- sodium_increment — Increment large number
- sodium_memcmp — Test for equality in constant-time
- sodium_memzero — Overwrite a string with NUL characters
- sodium_pad — Add padding data
- sodium_unpad — Remove padding data

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