New answers tagged 3des
Yes, 3DES is a symmetric cipher and you use a secret key for both encryption and decryption with it. However, that is not the same thing as the keys used in RSA or other public key cryptography – you cannot (and should not) use either of them for 3DES. Since you are using S/MIME, you are actually using public key encryption. Any reference to 3DES is about ...
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