Using separate key pairs for signing and encryption

15 Feb

In several countries, a digital signature has a status somewhat like that of a traditional pen and paper signature, like in the EU digital signature legislation. Generally, these provisions mean that anything digitally signed legally binds the signer of the document to the terms therein. For that reason, it is often thought best to use separate key pairs for encrypting and signing. Using the encryption key pair, a person can engage in an encrypted conversation (e.g., regarding a real estate transaction), but the encryption does not legally sign every message he sends. Only when both parties come to an agreement do they sign a contract with their signing keys, and only then are they legally bound by the terms of a specific document. After signing, the document can be sent over the encrypted link. If a signing key is lost or compromised, it can be revoked to mitigate any future transactions. If an encryption key is lost, a backup or key escrow should be utilized to continue viewing encrypted content. Signing keys should never be backed up or es crowed.

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2 Responses to “Using separate key pairs for signing and encryption”

  1. digitalabc2 July 4, 2014 at 10:29 am #

    This is a very nice article and gives in-depth information about dgft digital signature certificate.Thanks for this nice article, which is a really good to read.

  2. digitalabc2 July 14, 2014 at 5:20 am #

    Thanks for sharing your views. Great blog here…We provides digital signature like digital signature certificate

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