I'm looking for this, and i find in the IAIK API the following, that is
part of PKCS7 standard:
1. Use the |EncryptedData(byte[] data)|
<http://sta31.cs.may.ie:8001/CSS/CSSdocs/assignments/Day1/IAIK_stuff/IAIK-JCE3.13eval/docs/iaik/pkcs/pkcs7/EncryptedData.html#EncryptedData%28byte%5B%5D%29>
constructor for creating a new |EncryptedData| object and
supplying the data to be encrypted from a byte array:
//the data to be encrypted supplied from a byte array:
byte[] data = ...;
EncryptedData encrypted_data = new EncryptedData(data);
2. Setup the cipher for encryption by calling method
|setupCipher(AlgorithmID contentEA, char[] password)|
<http://sta31.cs.may.ie:8001/CSS/CSSdocs/assignments/Day1/IAIK_stuff/IAIK-JCE3.13eval/docs/iaik/pkcs/pkcs7/EncryptedData.html#setupCipher%28iaik.asn1.structures.AlgorithmID,%20char%5B%5D,%20int%29>
thereby specifying the PBE-algorithm to be used and the password,
e.g.:
AlgorithmID pbeAlgorithm =
AlgorithmID.pbeWithSHAAnd3_KeyTripleDES_CBC;
char[] password = ...;
encrypted_data.setupCipher(pbeAlgorithm, password);
3. Prepare the EncryptedData object for transmission by
transforming
it into an ASN1Object or immediately DER encoding it. The former
is done by calling the |toASN1Object|
<http://sta31.cs.may.ie:8001/CSS/CSSdocs/assignments/Day1/IAIK_stuff/IAIK-JCE3.13eval/docs/iaik/pkcs/pkcs7/EncryptedDataStream.html#toASN1Object%28%29>
method, the latter by using the |getEncoded|
<http://sta31.cs.may.ie:8001/CSS/CSSdocs/assignments/Day1/IAIK_stuff/IAIK-JCE3.13eval/docs/iaik/pkcs/pkcs7/EncryptedData.html#getEncoded%28%29>
method:
ASN1Object obj = encrypted_data.toASN1Object();
This mean that you can do a PKCS7 object with certificates, i think it.
Somebody knows what is the c functions that can do the same??
I need encrypt a buffer of bytes with a password and i have to generate
a PCKS format.
Thank!
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