@signature-kit/crypto

Shared cryptographic primitives for base64, PEM, PKCS#12, hashing, and cipher operations.

Install

bun add @signature-kit/crypto effect

effect is a direct runtime dependency. This is a low-level support package; prefer higher-level SignatureKit packages unless you need the primitive directly.

Public surface

• @signature-kit/crypto/base64 — bytesToBase64 and base64ToBytes.
• @signature-kit/crypto/config — CryptoError, CryptoErrorCodeValue, operation schemas, message catalogs, and Pkcs12ResultSchema.
• @signature-kit/crypto/pem — pemToDer and derToPem.
• @signature-kit/crypto/pkcs12 — parsePkcs12.

Example

import { bytesToBase64 } from "@signature-kit/crypto/base64";
import { pemToDer } from "@signature-kit/crypto/pem";
import { Effect } from "effect";

declare const certificatePem: string;

const program = Effect.gen(function* () {
  const der = yield* pemToDer(certificatePem);

  return {
    der,
    contentBase64: bytesToBase64(der),
  };
});

Errors and i18n

Crypto failures use the CryptoError code catalog and cryptoErrorMessages. Applications can render localized copy through @signature-kit/i18n by passing that catalog to errorMessage.

Docs: https://signaturekit.dev/en-US/docs/concepts/document-formats.

License

MIT. See LICENSE.