pkcs#1

PKCS#1 and PKCS#8 format for RSA private key [closed]

由 女生的网名这么多〃 提交于 2019-12-17 07:23:28
问题 Closed . This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post. Closed 12 months ago . Can some one help me understand how an RSA key literally is stored in these formats? I would like to know the difference between the PKCS formats vs Encodings(DER, PEM). From what I understand PEM is more human readable. Is PEM/DER for keys/certs similar to UTF-8/16 for

Decrypting an OpenSSL PEM Encoded RSA private key with Java?

由 ぐ巨炮叔叔 提交于 2019-12-17 06:51:52
问题 I have an encrypted private key and I know the password. I need to decrypt it using a Java library. I'd prefer not to use BouncyCastle though, unless there is no other option. Based on previous experience, there is too much change and not enough documentation. The private key is in this form: -----BEGIN RSA PRIVATE KEY----- Proc-Type: 4,ENCRYPTED DEK-Info: DES-EDE3-CBC,56F3A98D9CFFA77A X5h7SUDStF1tL16lRM+AfZb1UBDQ0D1YbQ6vmIlXiK.... ..... /KK5CZmIGw== -----END RSA PRIVATE KEY----- I believe

Light weight api to read PKCS#1 RSA public key in java?

由 戏子无情 提交于 2019-12-12 04:54:36
问题 I use bouncycastle to read the PKCS#1 format RSA public key, this key is begin with: -----BEGIN RSA PUBLIC KEY---- The code works well, but it will depends on a heavy bouncycastle jar. It will cause the code can't be compiled on Android because of the java function's number is more than 65535. I have changed the bouncycastle to spongycastle and decouple the prov.jar & pkix.jar. Also only use one class to reduce the code reference: org.spongycastle.asn1.pkcs.RSAPublicKey rsaPublicKey = org

Is the length of a DER-encoded RSAPublicKey (PKCS #1) for a 1024-bit RSA key pair consistent?

由 梦想与她 提交于 2019-12-12 04:45:45
问题 I've created multiple 1024-bit DER-encoded RSAPublicKeys (PKCS #1) with the openssl command: openssl genrsa 1024 | openssl rsa -outform DER -RSAPublicKey_out -out pubkey.der So far, every public key file created like this has been exactly 140 bytes. Are 1024-bit RSA public keys encoded in this format always 140 bytes, or can this size vary? I've learned that the size of a DER encoded private key can vary. 回答1: It should always be 140 bytes for a 1024-bit key using an exponent value of F4

Creating PKCS1 public key in Net Framework

由 寵の児 提交于 2019-12-10 19:19:46
问题 I need to create an RSA 1024 bit "PKCS1 public key without PEM headers" and store it as an array of bytes. In Net. Framework I have 2 arrays: RSAParameters.Modulus and RSAParameters.Exponent (which constitue a public key as I understand). How can I convert these two arrays into a "PKCS1 public key without PEM headers"? Thank you. 回答1: If you need to encode only RSA public key, you can write your own wrapper, it will take 5 lines of coding. RSA public key should be represented as the following

RFC 3447(pkcs#1 v2.1): Is it implemented in Openssl ? If so from which version?

由 社会主义新天地 提交于 2019-12-08 11:08:48
问题 Im having trouble hunting down documentation which mentions whether or not RFC 3447 is implemented in openssl. I have generated some test vectors for RSA-OAEP encryption using openssl 1.0.0. When I checked the openssl documentation i see that it mentions EME-OAEP as defined in PKCS #1 v2.0. source:-http://www.openssl.org/docs/crypto/RSA_public_encrypt.html. But when i have given these test vectors to one of my clients, they happen to say that the vectors are only compatible with version 2.1

Is there a perl implementation of SHA256withRSA

由 落爺英雄遲暮 提交于 2019-12-07 06:47:26
问题 I need to be able to craft JSON Web Token signatures (which only accepts 'RSASSA-PKCS1-V1_5-SIGN with the SHA-256 hash function' signatures), but the obvious CPAN contender for this task (Crypt::RSA) will only generate signatures using MD2, MD5 or SHA1. Is there another library somewhere that will do what I want? If necessary I should be able to do a bit of hacking to get there, but that wouldn't be too pretty. 回答1: Looks like you had to modify the 'Crypt::RSA::SS::PKCS1v15.pm' to add the

Encrypted Private Key to RSA Private Key

由 限于喜欢 提交于 2019-12-05 12:35:11
I have an Encrypted Private Key(say,servenc.key) in below format: -----BEGIN ENCRYPTED PRIVATE KEY----- MIIC2TBTBgkqhkiG9w0BBQ0wRjAlBgkqhkiG9w0BBQwwGAQSIFFvMaBFyBvqqhY6 yTV2fMVVAgIUczAdBglghkgBZQMEASoEEGRetyFtHhnJ7TZTM2qolWkEggKAFg/h GERtM1loEd+u8VAtLwTzBiXE5pmRpp/hX/1HrbBnzFjAsNtWlEtzpSuxuCoXtMst uKRB8qveHlfTQPzopkRZtljfOkD1DhdJz8BXSZrFmVkMrUq6m4Y/rnqTqI5JmtmQ qAXTBbl7u8TwMnqIaoSInEHnc+aiFT3KJuIq6PZy2rGKWGW2WB/OML2gANvHBI9n gyOo4VZHNsR6VBbCRJErUFhF5Wk2/YJD9ejnvXH6pJFqZYvnCFjkSlR+4MdCHBSo Ld0IoFjQ6X1uLLglFf/rQGKEQruLjTKmz6oe8nZIzrOoLmArir0DGTakEt0K6mha

Getting error “data too large for key size” with Crypto Node.js

由 家住魔仙堡 提交于 2019-12-05 02:48:09
问题 I'm getting the error "Error: error:0406C06E:rsa routines:RSA_padding_add_PKCS1_type_1:data too large for key size" when I do: var crypto = require('crypto'); var fs = require('fs'); var first_keys = { public_key: fs.readFileSync('tests/public.key'), private_key: fs.readFileSync('tests/private.key') } var first_result = crypto.privateEncrypt({ key: first_keys.private_key }, new Buffer("Hello World!")); var second_result = crypto.privateEncrypt({ key: first_keys.private_key }, first_result);

Getting error “data too large for key size” with Crypto Node.js

由 给你一囗甜甜゛ 提交于 2019-12-03 20:23:45
I'm getting the error "Error: error:0406C06E:rsa routines:RSA_padding_add_PKCS1_type_1:data too large for key size" when I do: var crypto = require('crypto'); var fs = require('fs'); var first_keys = { public_key: fs.readFileSync('tests/public.key'), private_key: fs.readFileSync('tests/private.key') } var first_result = crypto.privateEncrypt({ key: first_keys.private_key }, new Buffer("Hello World!")); var second_result = crypto.privateEncrypt({ key: first_keys.private_key }, first_result); var second_plaintext = crypto.publicDecrypt({ key: first_keys.public_key }, second_result); var first
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