| crypto/hmac | Package hmac implements the Keyed-Hash Message Authentication Code (HMAC) as defined in U.S. Federal Information Processing Standards Publication 198. |
| crypto/sha256 | Package sha256 implements the SHA224 and SHA256 hash algorithms as defined in FIPS 180-4. |
| fmt | Package fmt implements formatted I/O with functions analogous to C's printf and scanf. |
| go.mau.fi/libsignal/ecc | Package ecc provides a way to generate, sign, and use Elliptic-Curve X25519 Cryptography keys. |
| go.mau.fi/libsignal/keys/identity | Package identity provides identity keys used for verifying the identity of a signal user. |
| go.mau.fi/libsignal/logger | Package logger provides optional debug logging of the Signal library. |
| go.mau.fi/libsignal/signalerror | |
| go.mau.fi/libsignal/util/bytehelper | |
| go.mau.fi/libsignal/util/optional | |
| strconv | Package strconv implements conversions to and from string representations of basic data types. |