der

How to convert ECDiffieHellmanPublicKey instance to DER file in .net framework?

由 末鹿安然 提交于 2019-12-11 18:48:38
问题 I have following code: ECDiffieHellman ecdh = ECDiffieHellman.Create(ECCurve.NamedCurves.nistP256); ECDiffieHellmanPublicKey ecdhPublic = ecdh.PublicKey; How can I export the ECDiffieHellmanPublicKey instance (ecdhPublic) into DER encoded file? 回答1: Using BouncyCastle (http://www.bouncycastle.org/) you can export your ECDH public key to a DER encoded ANS.1 Object X9ECParameters ecP = NistNamedCurves.GetByName("P-256"); ECDomainParameters ecSpec = new ECDomainParameters(ecP.Curve, ecP.G, ecP.N

Can't DER encode and BER decode RSA public key

由 偶尔善良 提交于 2019-12-11 09:33:30
问题 I have problems using Crypto++ to save a RSA public key (that I obtained loading a private key file in PKCS#8 format). When decoding the key, I always get a BERDecodeErr exception. Here is the code I am using: CryptoPP::RSASSA_PKCS1v15_SHA_Signer _signer; CryptoPP::RSASSA_PKCS1v15_SHA_Verifier _verifier; CryptoPP::ByteQueue bytes; //_signer.AccessPublicKey().Save(bytes); // seem to save private key instead _signer.AccessKey().DEREncodePublicKey(bytes); //_verifier.AccessKey().Load(bytes); //

Convert RSA pem key String to der byte[]

由 試著忘記壹切 提交于 2019-12-11 04:27:29
问题 I'm trying to convert an RSA pem key (contained in a String) to a byte[], like this method does when given a .pem file FileInputStream: http://jets3t.s3.amazonaws.com/api/org/jets3t/service/security/EncryptionUtil.html#convertRsaPemToDer(java.io.InputStream) I've tried this: String pemKey = "-----BEGIN RSA PRIVATE KEY-----\r\n" + "{base64 encoded key part omitted}\r\n" + "{base64 encoded key part omitted}\r\n" + "{base64 encoded key part omitted}\r\n" + "-----END RSA PRIVATE KEY-----"; String

NodeJS: Validate certificate in DER format

由 断了今生、忘了曾经 提交于 2019-12-09 02:10:22
问题 I'm using crypto module to validate a certificate, but both, my certificate and my public key are in DER format. It seems that crypto module does not accept this format. Is there a way (or module) to convert DER to PEM format using NodeJS? I couldn't find any and cannot use command line to call openssl via shell. UPDATE: It's not about HTTPS certificates. It's about general X.509 certificates. And if you mark the question as negative, please leave a comment to justify it. Don't be a stupid if

ssl : Unable to load certificate

由 …衆ロ難τιáo~ 提交于 2019-12-08 15:53:50
问题 I have 2 files - CSR.csr and newkey.key, both seem to be in PEM format as follows - -----BEGIN CERTIFICATE REQUEST----- MIID.... -----END CERTIFICATE REQUEST----- -----BEGIN RSA PRIVATE KEY----- MI... -----END RSA PRIVATE KEY----- When I'm trying to read the CSR.csr file, I get the following error : $ openssl x509 -in CSR.csr -text -noout unable to load certificate 140518720210760:error:0906D06C:PEM routines:PEM_read_bio:no start line:pem_lib.c:698:Expecting: TRUSTED CERTIFICATE I read that

Encode a RSA public key to DER format

由 让人想犯罪 __ 提交于 2019-12-07 22:41:12
问题 I need a RSA public key encoded into DER format. The key-pair is generated using RSACryptoServiceProvider. What I'm looking for is the c# equivalent to the java: PublicKey pubKey = myPair.getPublic(); byte[] keyBytes = pubKey.getEncoded(); I have tried looking into BouncyCastle but got lost so if the solution is there any pointers are welcome. 回答1: Using Bouncy Castle: using Org.BouncyCastle.X509; using Org.BouncyCastle.Security; using Org.BouncyCastle.Crypto; using Org.BouncyCastle.Crypto

install X509 certificate programmatically in my case

由 不问归期 提交于 2019-12-07 01:33:49
问题 I am developing an Android project. I have a PEM certificate string: -----BEGIN CERTIFICATE----- MIIEczCCA1ugAwIBAgIBADANBgkqhkiG9w0BAQQFAD..AkGA1UEBhMCR0Ix EzARBgNVBAgTClNvbWUtU3RhdGUxFDASBgNVBAoTC0..0EgTHRkMTcwNQYD VQQLEy5DbGFzcyAxIFB1YmxpYyBQcmltYXJ5IENlcn..XRpb24gQXV0aG9y ...MANY LINES... It8una2gY4l2O//on88r5IWJlm1L0oA8e4fR2yrBHX..adsGeFKkyNrwGi/ 7vQMfXdGsRrXNGRGnX+vWDZ3/zWI0joDtCkNnqEpVn..HoX -----END CERTIFICATE----- (I assigned above certificate string to a variable named CERT_STR ) I

Encode a RSA public key to DER format

由 ▼魔方 西西 提交于 2019-12-06 08:47:25
I need a RSA public key encoded into DER format. The key-pair is generated using RSACryptoServiceProvider. What I'm looking for is the c# equivalent to the java: PublicKey pubKey = myPair.getPublic(); byte[] keyBytes = pubKey.getEncoded(); I have tried looking into BouncyCastle but got lost so if the solution is there any pointers are welcome. Using Bouncy Castle: using Org.BouncyCastle.X509; using Org.BouncyCastle.Security; using Org.BouncyCastle.Crypto; using Org.BouncyCastle.Crypto.Generators; using Org.BouncyCastle.Crypto.Parameters; ... var generator = new RsaKeyPairGenerator ();

What are different certificate types, formats in Cryptography

由 邮差的信 提交于 2019-12-05 23:55:17
问题 We are adding server certificates verification in SSL handshake for one of our clients. Being very new to Cryptography and C world, thought I would first clear my concepts about these things and then start with implementation. So, I googled a lot looking mostly for Certificates concepts, but couldn't clear up my concepts any better to my satisfaction. Actually it added more confusion. :) Here are some things which I don't understand almost at all: 1. What is base64 format? Is it same as DER?

Generate RSA private key from n, e, d, p, q values in bash with OpenSSL [duplicate]

由 流过昼夜 提交于 2019-12-05 12:43:23
This question already has answers here : How to Generate rsa keys using specific input numbers in openssl? (2 answers) Closed 3 years ago . I have calculated n, e, d, p, q values of an RSA key. Now, how can I generate a private key file (pem or der) with openssl command line tools? I was thinking about openssl asn1parse -genconf asn1.cnf -noout -out asn1.der but I cannot understand how to build the conf file. tintin The OpenSSL manpage for asn_generate_nconf comes with an example cnf for generating the private_key ASN.1 sequence that should work with your cmdline: asn1=SEQUENCE:private_key
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