Hello Steve,
first of all thanks for helpful advice. When printing out all the fields of
the message with the openssl command
I got for every recipient two blocks. One block includes the OAEP padding
and the other block (same recipient) includes the default padding.
d.ktri:
version: <ABSENT>
d.issuerAndSerialNumber:
issuer: C=DE, O=extern, OU=host3, CN=CA - host3
serialNumber: 12302977334217659119
keyEncryptionAlgorithm:
algorithm: rsaEncryption (1.2.840.113549.1.1.1)
parameter: NULL
d.ktri:
version: <ABSENT>
d.issuerAndSerialNumber:
issuer: C=DE, O=extern, OU=host3, CN=CA - host3
serialNumber: 12302977334217659119
keyEncryptionAlgorithm:
algorithm: rsaesOaep (1.2.840.113549.1.1.7)
parameter: SEQUENCE:
0:d=0 hl=2 l= 43 cons: SEQUENCE
2:d=1 hl=2 l= 13 cons: cont [ 0 ]
4:d=2 hl=2 l= 11 cons: SEQUENCE
6:d=3 hl=2 l= 9 prim: OBJECT :sha256
17:d=1 hl=2 l= 26 cons: cont [ 1 ]
19:d=2 hl=2 l= 24 cons: SEQUENCE
21:d=3 hl=2 l= 9 prim: OBJECT :mgf1
32:d=3 hl=2 l= 11 cons: SEQUENCE
34:d=4 hl=2 l= 9 prim: OBJECT :sha256
How can I make sure that only the OAEP padding is used?
Regards
Rudy
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