Function decrypt 

pub fn decrypt(
    key: &[u8; 32],
    ciphertext: &[u8],
    nonce: &[u8; 12],
) -> Result<Vec<u8>>

Decrypt data with AES-256-GCM.

Arguments

• key - 32-byte decryption key
• ciphertext - Encrypted data with appended tag
• nonce - 12-byte nonce used during encryption

Returns

Decrypted plaintext