| crypto | Package crypto collects common cryptographic constants. |
| crypto/ecdsa | Package ecdsa implements the Elliptic Curve Digital Signature Algorithm, as defined in [FIPS 186-5]. |
| crypto/rand | Package rand implements a cryptographically secure random number generator. |
| crypto/rsa | Package rsa implements RSA encryption as specified in PKCS #1 and RFC 8017. |
| crypto/sha256 | Package sha256 implements the SHA224 and SHA256 hash algorithms as defined in FIPS 180-4. |
| crypto/x509 | Package x509 implements a subset of the X.509 standard. |
| encoding/asn1 | Package asn1 implements parsing of DER-encoded ASN.1 data structures, as defined in ITU-T Rec X.690. |
| errors | Package errors implements functions to manipulate errors. |
| fmt | Package fmt implements formatted I/O with functions analogous to C's printf and scanf. |
| github.com/google/trillian/crypto/keys | Package keys provides access to public and private keys for signing and verification of signatures. |
| github.com/google/trillian/crypto/keys/der | Package der contains functions for marshaling and unmarshaling keys in DER format. |
| github.com/google/trillian/crypto/keys/pem | Package pem contains functions for marshaling and unmarshaling keys in PEM format. |
| github.com/google/trillian/crypto/keyspb | |
| math/big | Package big implements arbitrary-precision arithmetic (big numbers). |