加密擴展 mcrypt 在 PHP 7.2 中已經移除，從PHP 7.2.0開始，libsodium擴展與PHP捆綁在一起。對于較舊的PHP版本，可以通過PECL[https://pecl.php.net/package/libsodium](https://pecl.php.net/package/libsodium)獲得此擴展。 Sodium：一個提供加密、解密、簽名等功能的軟件庫 * [預定義常量](https://www.php.net/manual/en/sodium.constants.php) * [sodium函數](https://www.php.net/manual/en/ref.sodium.php) * [sodium_add](https://www.php.net/manual/en/function.sodium-add.php)—[加大](https://www.php.net/manual/en/function.sodium-add.php)數 * [sodium_base642bin](https://www.php.net/manual/en/function.sodium-base642bin.php)—說明 * [sodium_bin2base64](https://www.php.net/manual/en/function.sodium-bin2base64.php)—說明 * [sodium_bin2hex](https://www.php.net/manual/en/function.sodium-bin2hex.php)—編碼為十六進制 * [sodium_compare](https://www.php.net/manual/en/function.sodium-compare.php)—比較大數 * [sodium_crypto_aead_aes256gcm_decrypt](https://www.php.net/manual/en/function.sodium-crypto-aead-aes256gcm-decrypt.php)—在組合模式下通過預先計算進行解密 * [sodium_crypto_aead_aes256gcm_encrypt](https://www.php.net/manual/en/function.sodium-crypto-aead-aes256gcm-encrypt.php)—結合結合使用預先計算的模式進行加密 * [sodium_crypto_aead_aes256gcm_is_available](https://www.php.net/manual/en/function.sodium-crypto-aead-aes256gcm-is-available.php)—檢查硬件是否支持AES256-GCM * [sodium_crypto_aead_aes256gcm_keygen](https://www.php.net/manual/en/function.sodium-crypto-aead-aes256gcm-keygen.php)—獲取密鑰的隨機字節 * [sodium_crypto_aead_chacha20poly1305_decrypt](https://www.php.net/manual/en/function.sodium-crypto-aead-chacha20poly1305-decrypt.php)—驗證密文是否包含有效標簽 * [sodium_crypto_aead_chacha20poly1305_encrypt](https://www.php.net/manual/en/function.sodium-crypto-aead-chacha20poly1305-encrypt.php)—加密消息 * [sodium_crypto_aead_chacha20poly1305_ietf_decrypt](https://www.php.net/manual/en/function.sodium-crypto-aead-chacha20poly1305-ietf-decrypt.php)—驗證密文是否包含有效標簽 * [sodium_crypto_aead_chacha20poly1305_ietf_encrypt](https://www.php.net/manual/en/function.sodium-crypto-aead-chacha20poly1305-ietf-encrypt.php)—加密消息 * [sodium_crypto_aead_chacha20poly1305_ietf_keygen](https://www.php.net/manual/en/function.sodium-crypto-aead-chacha20poly1305-ietf-keygen.php)—獲取密鑰的隨機字節 * [sodium_crypto_aead_chacha20poly1305_keygen](https://www.php.net/manual/en/function.sodium-crypto-aead-chacha20poly1305-keygen.php)—獲取密鑰的隨機字節 * [sodium_crypto_aead_xchacha20poly1305_ietf_decrypt](https://www.php.net/manual/en/function.sodium-crypto-aead-xchacha20poly1305-ietf-decrypt.php)—說明 * [sodium_crypto_aead_xchacha20poly1305_ietf_encrypt](https://www.php.net/manual/en/function.sodium-crypto-aead-xchacha20poly1305-ietf-encrypt.php)—說明 * [sodium_crypto_aead_xchacha20poly1305_ietf_keygen](https://www.php.net/manual/en/function.sodium-crypto-aead-xchacha20poly1305-ietf-keygen.php)—說明 * [sodium_crypto_auth_keygen](https://www.php.net/manual/en/function.sodium-crypto-auth-keygen.php)—獲取密鑰的隨機字節 * [sodium_crypto_auth_verify](https://www.php.net/manual/en/function.sodium-crypto-auth-verify.php)—驗證標簽對消息有效 * [sodium_crypto_auth](https://www.php.net/manual/en/function.sodium-crypto-auth.php)—計算消息的標簽 * [sodium_crypto_box_keypair_from_secretkey_and_publickey](https://www.php.net/manual/en/function.sodium-crypto-box-keypair-from-secretkey-and-publickey.php)—說明 * [sodium_crypto_box_keypair](https://www.php.net/manual/en/function.sodium-crypto-box-keypair.php)—隨機生成一個秘密密鑰和一個對應的公共密鑰 * [sodium_crypto_box_open](https://www.php.net/manual/en/function.sodium-crypto-box-open.php)—驗證[和解密密](https://www.php.net/manual/en/function.sodium-crypto-box-open.php)文 * [sodium_crypto_box_publickey_from_secretkey](https://www.php.net/manual/en/function.sodium-crypto-box-publickey-from-secretkey.php)—說明 * [sodium_crypto_box_publickey-](https://www.php.net/manual/en/function.sodium-crypto-box-publickey.php)說明 * [sodium_crypto_box_seal_open](https://www.php.net/manual/en/function.sodium-crypto-box-seal-open.php)—解密密文 * [sodium_crypto_box_seal](https://www.php.net/manual/en/function.sodium-crypto-box-seal.php)—加密消息 * [sodium_crypto_box_secretkey](https://www.php.net/manual/en/function.sodium-crypto-box-secretkey.php)—說明 * [sodium_crypto_box_seed_keypair](https://www.php.net/manual/en/function.sodium-crypto-box-seed-keypair.php)—確定性地從單個密鑰導出密鑰對 * [sodium_crypto_box](https://www.php.net/manual/en/function.sodium-crypto-box.php)—加密消息 * [sodium_crypto_generichash_final](https://www.php.net/manual/en/function.sodium-crypto-generichash-final.php)—完成哈希 * [sodium_crypto_generichash_init](https://www.php.net/manual/en/function.sodium-crypto-generichash-init.php)—初始化哈希 * [sodium_crypto_generichash_keygen](https://www.php.net/manual/en/function.sodium-crypto-generichash-keygen.php)—獲取密鑰的隨機字節 * [sodium_crypto_generichash_update](https://www.php.net/manual/en/function.sodium-crypto-generichash-update.php)—將消息添加到哈希 * [sodium_crypto_generichash](https://www.php.net/manual/en/function.sodium-crypto-generichash.php)—獲取消息的哈希值 * [sodium_crypto_kdf_derive_from_key](https://www.php.net/manual/en/function.sodium-crypto-kdf-derive-from-key.php)—派生一個子項 * [sodium_crypto_kdf_keygen](https://www.php.net/manual/en/function.sodium-crypto-kdf-keygen.php)—獲取密鑰的隨機字節 * [sodium_crypto_kx_client_session_keys](https://www.php.net/manual/en/function.sodium-crypto-kx-client-session-keys.php)—說明 * [sodium_crypto_kx_keypair](https://www.php.net/manual/en/function.sodium-crypto-kx-keypair.php)—創建一個新的sodium密鑰對 * [sodium_crypto_kx_publickey](https://www.php.net/manual/en/function.sodium-crypto-kx-publickey.php)—說明 * [sodium_crypto_kx_secretkey](https://www.php.net/manual/en/function.sodium-crypto-kx-secretkey.php)—說明 * [sodium_crypto_kx_seed_keypair](https://www.php.net/manual/en/function.sodium-crypto-kx-seed-keypair.php)—說明 * [sodium_crypto_kx_server_session_keys](https://www.php.net/manual/en/function.sodium-crypto-kx-server-session-keys.php)—說明 * [sodium_crypto_pwhash_scryptsalsa208sha256_str_verify](https://www.php.net/manual/en/function.sodium-crypto-pwhash-scryptsalsa208sha256-str-verify.php)—驗證密碼是否為有效的密碼驗證字符串 * [sodium_crypto_pwhash_scryptsalsa208sha256_str](https://www.php.net/manual/en/function.sodium-crypto-pwhash-scryptsalsa208sha256-str.php)—獲取ASCII編碼的哈希 * [sodium_crypto_pwhash_scryptsalsa208sha256](https://www.php.net/manual/en/function.sodium-crypto-pwhash-scryptsalsa208sha256.php)—從密碼[派生](https://www.php.net/manual/en/function.sodium-crypto-pwhash-scryptsalsa208sha256.php)密鑰 * [sodium_crypto_pwhash_str_needs_rehash](https://www.php.net/manual/en/function.sodium-crypto-pwhash-str-needs-rehash.php)—說明 * [sodium_crypto_pwhash_str_verify](https://www.php.net/manual/en/function.sodium-crypto-pwhash-str-verify.php)—驗證密碼是否匹配哈希 * [sodium_crypto_pwhash_str](https://www.php.net/manual/en/function.sodium-crypto-pwhash-str.php)—獲取ASCII編碼的哈希 * [sodium_crypto_pwhash](https://www.php.net/manual/en/function.sodium-crypto-pwhash.php)—從密碼派生密鑰 * [sodium_crypto_scalarmult_base](https://www.php.net/manual/en/function.sodium-crypto-scalarmult-base.php)—[sodium_crypto_box_publickey_from_secretkey的](https://www.php.net/manual/en/function.sodium-crypto-scalarmult-base.php)別名 * [sodium_crypto_scalarmult](https://www.php.net/manual/en/function.sodium-crypto-scalarmult.php)—給定用戶的密鑰和另一個用戶的公共密鑰，計算共享密鑰 * [sodium_crypto_secretbox_keygen](https://www.php.net/manual/en/function.sodium-crypto-secretbox-keygen.php)—獲取密鑰的隨機字節 * [sodium_crypto_secretbox_open](https://www.php.net/manual/en/function.sodium-crypto-secretbox-open.php)—驗證[和解密密](https://www.php.net/manual/en/function.sodium-crypto-secretbox-open.php)文 * [sodium_crypto_secretbox](https://www.php.net/manual/en/function.sodium-crypto-secretbox.php)—加密消息 * [sodium_crypto_secretstream_xchacha20poly1305_init_pull](https://www.php.net/manual/en/function.sodium-crypto-secretstream-xchacha20poly1305-init-pull.php)—說明 * [sodium_crypto_secretstream_xchacha20poly1305_init_push](https://www.php.net/manual/en/function.sodium-crypto-secretstream-xchacha20poly1305-init-push.php)—說明 * [sodium_crypto_secretstream_xchacha20poly1305_keygen](https://www.php.net/manual/en/function.sodium-crypto-secretstream-xchacha20poly1305-keygen.php)—說明 * [sodium_crypto_secretstream_xchacha20poly1305_pull](https://www.php.net/manual/en/function.sodium-crypto-secretstream-xchacha20poly1305-pull.php)—說明 * [sodium_crypto_secretstream_xchacha20poly1305_push](https://www.php.net/manual/en/function.sodium-crypto-secretstream-xchacha20poly1305-push.php)—說明 * [sodium_crypto_secretstream_xchacha20poly1305_rekey](https://www.php.net/manual/en/function.sodium-crypto-secretstream-xchacha20poly1305-rekey.php)—說明 * [sodium_crypto_shorthash_keygen](https://www.php.net/manual/en/function.sodium-crypto-shorthash-keygen.php)—獲取密鑰的隨機字節 * [sodium_crypto_shorthash](https://www.php.net/manual/en/function.sodium-crypto-shorthash.php)—計算消息的固定大小的指紋 * [sodium_crypto_sign_detached](https://www.php.net/manual/en/function.sodium-crypto-sign-detached.php)—對消息簽名 * [sodium_crypto_sign_ed25519_pk_to_curve25519](https://www.php.net/manual/en/function.sodium-crypto-sign-ed25519-pk-to-curve25519.php)—將Ed25519公鑰轉換為Curve25519公鑰 * [sodium_crypto_sign_ed25519_sk_to_curve25519](https://www.php.net/manual/en/function.sodium-crypto-sign-ed25519-sk-to-curve25519.php)—將Ed25519秘密密鑰轉換為Curve25519秘密密鑰 * [sodium_crypto_sign_keypair_from_secretkey_and_publickey](https://www.php.net/manual/en/function.sodium-crypto-sign-keypair-from-secretkey-and-publickey.php)—說明 * [sodium_crypto_sign_keypair](https://www.php.net/manual/en/function.sodium-crypto-sign-keypair.php)—隨機生成一個秘密密鑰和一個對應的公共密鑰 * [sodium_crypto_sign_open](https://www.php.net/manual/en/function.sodium-crypto-sign-open.php)—檢查已簽名的消息是否具有有效的簽名 * [sodium_crypto_sign_publickey_from_secretkey](https://www.php.net/manual/en/function.sodium-crypto-sign-publickey-from-secretkey.php)—從[私鑰中](https://www.php.net/manual/en/function.sodium-crypto-sign-publickey-from-secretkey.php)提取公鑰 * [sodium_crypto_sign_publickey](https://www.php.net/manual/en/function.sodium-crypto-sign-publickey.php)—說明 * [sodium_crypto_sign_secretkey](https://www.php.net/manual/en/function.sodium-crypto-sign-secretkey.php)—說明 * [sodium_crypto_sign_seed_keypair](https://www.php.net/manual/en/function.sodium-crypto-sign-seed-keypair.php)—從單個密鑰確定性地導出密鑰對 * [sodium_crypto_sign_verify_detached](https://www.php.net/manual/en/function.sodium-crypto-sign-verify-detached.php)—驗證消息的簽名 * [sodium_crypto_sign](https://www.php.net/manual/en/function.sodium-crypto-sign.php)—簽名消息 * [sodium_crypto_stream_keygen](https://www.php.net/manual/en/function.sodium-crypto-stream-keygen.php)—獲取密鑰的隨機字節 * [sodium_crypto_stream_xor](https://www.php.net/manual/en/function.sodium-crypto-stream-xor.php)—加密消息 * [sodium_crypto_stream](https://www.php.net/manual/en/function.sodium-crypto-stream.php)—從種子生成確定的字節序列 * [sodium_hex2bin](https://www.php.net/manual/en/function.sodium-hex2bin.php)—解碼十六進制編碼的二進制字符串 * [sodium_increment](https://www.php.net/manual/en/function.sodium-increment.php)—增加數量 * [sodium_memcmp](https://www.php.net/manual/en/function.sodium-memcmp.php)—恒定時間測試相等性 * [sodium_memzero](https://www.php.net/manual/en/function.sodium-memzero.php)—用零覆蓋buf * [sodium_pad](https://www.php.net/manual/en/function.sodium-pad.php)—添加填充數據 * [sodium_unpad](https://www.php.net/manual/en/function.sodium-unpad.php)—刪除填充數據