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POCapicom and SHA1 - Help translating a java code to Delphi
 

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    <p>I have a java application that signs a string using a certificate. It works encrypting the string it with SHA1. I am trying to translate the code to Delphi 2010, but I have no idea how to get it working the same way the java app does (using sha1). So far, I have found this:</p> <p><a href="https://stackoverflow.com/questions/1630714/delphi-7-access-windows-x509-certificate-store">Delphi 7 access Windows X509 Certificate Store</a> </p> <p>It does work, but it does not use sha1 and I get different results when I run the java app.</p> <h2>Java code</h2> <pre><code> char[] pass = (char[]) null; PrivateKey key = (PrivateKey) getKeyStore().getKey(alias, pass); Certificate[] chain = getKeyStore().getCertificateChain(alias); CertStore certsAndCRLs = CertStore.getInstance("Collection", new CollectionCertStoreParameters(Arrays.asList(chain)), "BC"); X509Certificate cert = (X509Certificate) chain[0]; CMSSignedDataGenerator gen = new CMSSignedDataGenerator(); gen.addSigner(key, cert, CMSSignedDataGenerator.DIGEST_SHA1); gen.addCertificatesAndCRLs(certsAndCRLs); CMSProcessable data = new CMSProcessableByteArray(conteudoParaAssinar); CMSSignedData signed = gen.generate(data, true, "SunMSCAPI"); byte[] envHex = signed.getEncoded(); CertInfo certInfo = new CertInfo(); certInfo.Hash = new BigInteger(envHex).toString(16); return certInfo; </code></pre> <h2>Delphi Code</h2> <pre><code>var lSigner: TSigner; lSignedData: TSignedData; fs: TFileStream; qt: integer; ch: PChar; msg : WideString; content : string; cert: TCertificate; begin cert := Self.GetCert; content := 'test'; lSigner := TSigner.Create(self); lSigner.Certificate := cert.DefaultInterface; lSignedData := TSignedData.Create(self); lSignedData.content := content; msg := lSignedData.Sign(lSigner.DefaultInterface, false, CAPICOM_ENCODE_BASE64); lSignedData.Free; lSigner.Free; </code></pre> <p><strong>EDIT</strong></p> <p>Based on the java code, should I get the cert info in binary format, apply sha1 on it and them convert it to hex? Is this the right order and the same thing the java code does? I can see some SHA1 constants in the capicom tlb as well as a hash class, maybe I should use those classes, but I dont know how.</p>
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    1. USRafael Colucci
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      1. USJeroen Wiert Pluimers
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    1. COyou are encoding in base 64 in delphi and in java use base 16, I think it might be a problem.
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      1. USAsad Rasheed
    2. COIt may be, but thats another issue. I need to know how to sign a document using SHA1.
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      1. USRafael Colucci
    3. CO@asad, use it where?
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