pkcs#7

I am trying to sign pdf using pdfbox libraries. I have stuck now and realy need a help. This is my code: private static void signPdf(PDDocument document) throws Exception { PDSignature sig = new PDSignature(); sig.setFilter(COSName.ADOBE_PPKLITE); sig.setSubFilter(COSName.ADBE_PKCS7_DETACHED); sig.setByteRange(new int[] {'a','a','a','a'}); sig.setContents(new byte[]{(byte) 23, (byte) 23, (byte) 23, (byte) 23}); SignatureOptions options = new SignatureOptions(); document.addSignature(sig, new SignatureInterface() { public byte[] sign(InputStream content) throws SignatureException, IOException {

I am getting PKCS7 file (p7b). I want to read the content of the file and extract certificate in X509 structure. How can I access individual Certificate from the PKCS container using openssl library? I've used the following program: #include <stdio.h> #include <openssl/pkcs7.h> #include <openssl/x509.h> #include <openssl/bio.h> #include <openssl/pem.h> int main(int argc, char **argv) { PKCS7 *p7 = NULL; BIO *in = BIO_new(BIO_s_file()); BIO *out = BIO_new(BIO_s_file()); int der = 0; /* Input from DER or PEM ? */ int text = 0; /* Dump text or output PEM ? */ STACK_OF(X509) *certs = NULL; int i;

I have a SAML assertion that I wish to authenticate in .Net using WSSecurityTokenSerializer . I've got the key-chain and SAML XML, despite a few issues . First I get the SAML assertion from the HTTPS POST: // spec says "SAMLResponse=" string rawSamlData = Request["SAMLResponse"]; // read the base64 encoded bytes byte[] samlData = Convert.FromBase64String(rawSamlData); // read back into a UTF string string samlAssertion = Encoding.UTF8.GetString(samlData); // get the SAML data in an XML reader var assertionPostStream = new StringReader(samlAssertion); var reader = XmlReader.Create

I am currently using AES/CBC/PKCS5Padding for encrypting files in Java with 256 bytes key size, but while searching I found on stackexchange PKCS#5-PKCS#7 Padding and it is mentioned, PKCS#5 padding is a subset of PKCS#7 padding for 8 byte block sizes So I want to know Will the performance of AES/CBC/PKCS7Padding will be better then AES/CBC/PKCS5Padding for the above configuration? How can we configure the block size in Java as it is mentioned PKCS#7 padding would work for any block size from 1 to 255 bytes. My sample code is, SecureRandom rnd = new SecureRandom(); IvParameterSpec iv = new