Verifying an encrypted PKCS#7

2001-11-30 Thread Hellan,Kim KHE
Hi If I have a PKCS#7 that is only encrypted (pkcs7_enveloped) , how can I then be sure of the integrity of the data? With a signed PKCS#7 you can verify the signature, but what if there is no signature. Does the PKCS#7 format itself make it impossible to tamper with such an encrypted blob or is

Re: Verifying an encrypted PKCS#7

2001-11-30 Thread Dr S N Henson
Hellan,Kim KHE wrote: Hi If I have a PKCS#7 that is only encrypted (pkcs7_enveloped) , how can I then be sure of the integrity of the data? With a signed PKCS#7 you can verify the signature, but what if there is no signature. Does the PKCS#7 format itself make it impossible to tamper