All C code compiled via NIST by Rodrigo Amaral using emscriptem for Diode Messenger

• A wrapper around Rodrigo's code to allow functionality for (QKEM) McElice, (KEM) RSA, (SIG) ED25519
• Using built in web features, functionality for (ENC) AES-CTR

Examples

Public-secret key cryptography

Post-Quantum McEliece

DiodeCrypto.gen_mceliece460896f().then((keys) => {

    var public_key = keys.pub;
    var private_key = keys.priv;

    DiodeCrypto.encap_mceliece460896f(keys.pub).then((out) => {

        var cipher = out.cipher;
        var ss1 = out.shared_secret;

        DiodeCrypto.decap_mceliece460896f(keys.priv, cipher).then((out) => {

            var ss2 = out.shared_secret;

        });

    })
})

RSA

DiodeCrypto.gen_rsa().then((keys) => {

    var public_key = keys.pub;
    var private_key = keys.priv;

    DiodeCrypto.encap_rsa(keys.pub).then((out) => {

        var cipher = out.cipher
        var ss1 = out.shared_secret

        DiodeCrypto.decap_rsa(keys.priv, cipher).then((out) => {

            var ss2 = out.shared_secret;

        });
    })
});

Message Signing

ED25519

DiodeCrypto.gen_ed25519().then((keys) => {

    var public_key = keys.pub;
    var private_key = keys.priv;

    DiodeCrypto.sign_ed25519("Hello World!", keys.priv).then((out) => {

        var signature = out.sig

        DiodeCrypto.verify_ed25519(signature, keys.pub, "Hello World!").then((out) => {

            var isVerified = out.verified;

        })
    })
});

Symmetric Encryption

AES

DiodeCrypto.encrypt_aes_ctr("Hello", "HT24EFLxzRYATTG4PwMstxuIc6cnfnr4VjIeSJc9SMQ=").then((out) => {

    var encrypted = out.n_ct;

    DiodeCrypto.decrypt_aes_ctr(encrypted, "HT24EFLxzRYATTG4PwMstxuIc6cnfnr4VjIeSJc9SMQ=").then((out) => {

        var plainttext = out.text;

    })
})

This code requires HTTPS, along with the following headers to be present to the web browser

    Cross-Origin-Embedder-Policy: require-corp
    Cross-Origin-Opener-Policy: same-origin