DecodeBase58RecoveryKey recovers the secret storage from a recovery key.

DeriveKeysSHA256 derives an AES and a HMAC key from the given recovery key.

EncodeBase58RecoveryKey recovers the secret storage from a recovery key.

GenA256CTRIV generates a random IV for AES256-CTR with the last bit set to zero.

GenAttachmentA256CTR generates a new random AES256-CTR key and IV suitable for encrypting attachments.

HMACSHA256B64 calculates the base64 of the SHA256 hmac of the input with the given key.

PBKDF2SHA512 generates a key of the given bit-length using the given passphrase, salt and iteration count.

XorA256CTR encrypts the input with the keystream generated by the AES256-CTR algorithm with the given arguments.

AESCTRIVLength is the length of the AES256-CTR IV used.

AESCTRKeyLength is the length of the AES256-CTR key used.

HMACKeyLength is the length of the HMAC key used.

SHAHashLength is the length of the SHA hash used.