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python libsodium wrapper

Project description

This is a very simple wrapper around libsodium masquerading as nacl.

[![Build Status](https://travis-ci.org/stef/pysodium.svg?branch=master)](https://travis-ci.org/stef/pysodium)

This wrapper requires a pre-installed libsodium from:

https://github.com/jedisct1/libsodium

then it provides access to the following functions:

` crypto_aead_chacha20poly1305_decrypt(ciphertext, ad, nonce, key) crypto_aead_chacha20poly1305_decrypt_detached(ciphertext, mac, ad, nonce, key) crypto_aead_chacha20poly1305_encrypt_detached(message, ad, nonce, key) crypto_aead_chacha20poly1305_encrypt(message, ad, nonce, key) crypto_aead_chacha20poly1305_ietf_decrypt(ciphertext, ad, nonce, key) crypto_aead_chacha20poly1305_ietf_encrypt(message, ad, nonce, key) crypto_aead_xchacha20poly1305_ietf_decrypt(ciphertext, ad, nonce, key) crypto_aead_xchacha20poly1305_ietf_encrypt(message, ad, nonce, key) crypto_auth(message, key) crypto_auth_verify(tag, message, key) crypto_box_afternm(msg, nonce, k) crypto_box_beforenm(pk, sk) crypto_box_detached(msg, nonce, pk, sk) crypto_box_keypair() crypto_box(msg, nonce, pk, sk) crypto_box_open_afternm(c, nonce, k) crypto_box_open(c, nonce, pk, sk) crypto_box_open_detached(c, mac, nonce, pk, sk) crypto_box_seal(msg, pk) crypto_box_seal_open(c, pk, sk) crypto_box_seed_keypair(seed) crypto_generichash_blake2b_salt_personal(message, outlen = crypto_generichash_blake2b_BYTES, key = b'', salt = b'', personal = b'') crypto_generichash_final(state, outlen=crypto_generichash_BYTES) crypto_generichash_init(outlen=crypto_generichash_BYTES, k=b'') crypto_generichash(m, k=b'', outlen=crypto_generichash_BYTES) crypto_generichash_update(state, m) crypto_hash_sha256(message) crypto_hash_sha512(message) crypto_kx_client_session_keys(client_pk, client_sk, server_pk) crypto_kx_keypair() crypto_kx_server_session_keys(server_pk, server_sk, client_pk) crypto_pwhash(outlen, passwd, salt, opslimit, memlimit, alg) crypto_pwhash_scryptsalsa208sha256(outlen, passwd, salt, opslimit, memlimit) crypto_pwhash_scryptsalsa208sha256_str(passwd, opslimit, memlimit) crypto_pwhash_scryptsalsa208sha256_str_verify(stored, passwd) crypto_pwhash_str(passwd, opslimit, memlimit) crypto_pwhash_str_verify(pstr, passwd) crypto_scalarmult_curve25519_base(n) crypto_scalarmult_curve25519(n, p) crypto_secretbox(msg, nonce, k) crypto_secretbox_open(c, nonce, k) crypto_secretstream_xchacha20poly1305_keygen(): crypto_secretstream_xchacha20poly1305_init_push(key): crypto_secretstream_xchacha20poly1305_init_pull(header, key): crypto_secretstream_xchacha20poly1305_rekey(state): crypto_secretstream_xchacha20poly1305_push(state, message, ad, tag): crypto_secretstream_xchacha20poly1305_pull(state, ciphertext, ad): crypto_sign_init() crypto_sign_update(state, m) crypto_sign_final_create(state, sk) crypto_sign_final_verify(state, sig, pk) crypto_sign_detached(m, sk) crypto_sign_keypair() crypto_sign(m, sk) crypto_sign_open(sm, pk) crypto_sign_pk_to_box_pk(pk) crypto_sign_seed_keypair(seed) crypto_sign_sk_to_box_sk(sk) crypto_sign_sk_to_pk(sk) crypto_sign_sk_to_seed(sk) crypto_sign_verify_detached(sig, msg, pk) crypto_stream_chacha20_xor(message, nonce, key) crypto_stream(cnt, nonce=None, key=None) crypto_stream_xor(msg, cnt, nonce=None, key=None) randombytes(size) `

Constants:

` crypto_aead_chacha20poly1305_ABYTES crypto_aead_chacha20poly1305_KEYBYTES crypto_aead_chacha20poly1305_NPUBBYTES crypto_aead_chacha20poly1305_ietf_KEYBYTES crypto_aead_chacha20poly1305_ietf_NPUBBYTES crypto_aead_xchacha20poly1305_ietf_KEYBYTES crypto_aead_xchacha20poly1305_ietf_NPUBBYTES crypto_aead_xchacha20poly1305_ietf_ABYTES crypto_auth_BYTES crypto_auth_KEYBYTES crypto_box_BEFORENMBYTES crypto_box_BOXZEROBYTES crypto_box_MACBYTES crypto_box_NONCEBYTES crypto_box_PUBLICKEYBYTES crypto_box_SEALBYTES crypto_box_SECRETKEYBYTES crypto_box_SEEDBYTES crypto_box_ZEROBYTES crypto_generichash_KEYBYTES_MAX crypto_generichash_BYTES crypto_generichash_BYTES_MAX crypto_generichash_BYTES_MIN crypto_generichash_STATEBYTES crypto_generichash_blake2b_BYTES crypto_generichash_blake2b_BYTES_MAX crypto_generichash_blake2b_BYTES_MIN crypto_generichash_blake2b_KEYBYTES_MAX crypto_generichash_blake2b_PERSONALBYTES crypto_generichash_blake2b_SALTBYTES crypto_hash_sha256_BYTES crypto_hash_sha512_BYTES crypto_kx_PUBLICKEYBYTES crypto_kx_SECRETKEYBYTES crypto_kx_SESSIONKEYBYTES crypto_pwhash_ALG_DEFAULT crypto_pwhash_ALG_ARGON2I13 crypto_pwhash_ALG_ARGON2ID13 crypto_pwhash_BYTES_MAX crypto_pwhash_BYTES_MIN crypto_pwhash_MEMLIMIT_MAX crypto_pwhash_MEMLIMIT_MIN crypto_pwhash_MEMLIMIT_INTERACTIVE crypto_pwhash_MEMLIMIT_MODERATE crypto_pwhash_MEMLIMIT_SENSITIVE crypto_pwhash_OPSLIMIT_MAX crypto_pwhash_OPSLIMIT_MIN crypto_pwhash_OPSLIMIT_INTERACTIVE crypto_pwhash_OPSLIMIT_MODERATE crypto_pwhash_OPSLIMIT_SENSITIVE crypto_pwhash_PASSWD_MAX crypto_pwhash_PASSWD_MIN crypto_pwhash_argon2i_MEMLIMIT_INTERACTIVE crypto_pwhash_argon2i_MEMLIMIT_MODERATE crypto_pwhash_argon2i_MEMLIMIT_SENSITIVE crypto_pwhash_argon2i_OPSLIMIT_INTERACTIVE crypto_pwhash_argon2i_OPSLIMIT_MODERATE crypto_pwhash_argon2i_OPSLIMIT_SENSITIVE crypto_pwhash_argon2id_MEMLIMIT_INTERACTIVE crypto_pwhash_argon2id_MEMLIMIT_MODERATE crypto_pwhash_argon2id_MEMLIMIT_SENSITIVE crypto_pwhash_argon2id_OPSLIMIT_INTERACTIVE crypto_pwhash_argon2id_OPSLIMIT_MODERATE crypto_pwhash_argon2id_OPSLIMIT_SENSITIVE crypto_pwhash_SALTBYTES crypto_pwhash_STRBYTES crypto_pwhash_scryptsalsa208sha256_BYTES_MAX crypto_pwhash_scryptsalsa208sha256_BYTES_MIN crypto_pwhash_scryptsalsa208sha256_MEMLIMIT_MAX crypto_pwhash_scryptsalsa208sha256_MEMLIMIT_MIN crypto_pwhash_scryptsalsa208sha256_MEMLIMIT_INTERACTIVE crypto_pwhash_scryptsalsa208sha256_MEMLIMIT_SENSITIVE crypto_pwhash_scryptsalsa208sha256_OPSLIMIT_MAX crypto_pwhash_scryptsalsa208sha256_OPSLIMIT_MIN crypto_pwhash_scryptsalsa208sha256_OPSLIMIT_INTERACTIVE crypto_pwhash_scryptsalsa208sha256_OPSLIMIT_SENSITIVE crypto_pwhash_scryptsalsa208sha256_PASSWD_MAX crypto_pwhash_scryptsalsa208sha256_PASSWD_MIN crypto_pwhash_scryptsalsa208sha256_SALTBYTES crypto_pwhash_scryptsalsa208sha256_STRBYTES crypto_pwhash_scryptsalsa208sha256_STRPREFIX crypto_scalarmult_BYTES crypto_scalarmult_SCALARBYTES crypto_scalarmult_curve25519_BYTES crypto_secretbox_BOXZEROBYTES crypto_secretbox_KEYBYTES crypto_secretbox_KEYBYTES crypto_secretbox_MACBYTES crypto_secretbox_NONCEBYTES crypto_secretbox_ZEROBYTES crypto_secretstream_xchacha20poly1305_STATEBYTES crypto_secretstream_xchacha20poly1305_ABYTES crypto_secretstream_xchacha20poly1305_HEADERBYTES crypto_secretstream_xchacha20poly1305_KEYBYTES crypto_secretstream_xchacha20poly1305_MESSAGEBYTES_MAX crypto_secretstream_xchacha20poly1305_TAG_MESSAGE crypto_secretstream_xchacha20poly1305_TAG_PUSH crypto_secretstream_xchacha20poly1305_TAG_REKEY crypto_secretstream_xchacha20poly1305_TAG_FINAL crypto_sign_BYTES crypto_sign_PUBLICKEYBYTES crypto_sign_SECRETKEYBYTES crypto_sign_SEEDBYTES crypto_sign_ed25519_PUBLICKEYBYTES crypto_sign_ed25519_SECRETKEYBYTES crypto_stream_KEYBYTES crypto_stream_NONCEBYTES crypto_stream_chacha20_NONCEBYTES crypto_stream_chacha20_KEYBYTES `

Note

most of the the *_easy functions are not implemented as the “non-easy” functions provide already the “easy” interface, which hides the placement of buffers in memory, which makes little sense in python, so this wrapper handles this.

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