Annex of Brexit contract suggests use of Netscape Navigator for encryption [pdf]
ec.europa.eu
ec.europa.eu
And netscape navigator is only referred as an example of software which supports MIME types.
– the sequence of the operations is: first encryption and then signing, – the encryption algorithm AES (Advanced Encryption Standard) with 256 bit key length and RSA with 1024 bit key length shall be applied for symmetric and asymmetric encryption respectively, – the hash algorithm SHA-1 shall be applied.
Really?