Recent questions tagged encryption

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encryption - Java BadPaddingException when verifying data signed on a JavaCard

I'm signing some data on a JavaCard with a cipher, then outputting it into a text file, reading it into a ... to sign and verify, for clarity See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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encryption - How do I use a private key in C#? "Cannot find the requested object."

I'm trying to implement authentication for MasterCard Match, as part of their following documentation, they have a ... I doing something wrong? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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encryption - Check if a connection is TLSv1 vs SSLv3 (SSL_CIPHER_description/SSL_CIPHER_get_name)

I have a server application that uses OpenSSL. I'm trying to understand what type of SSL connections are ... SSLv3 versus TLSv1 in OpenSSL? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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encryption - PHP: Warning mcrypt_generic_init(): Iv size is incorrect; supplied length: 12, needed: 8

Basic Facts: $algorithm = MCRYPT_BLOWFISH; $mode = MCRYPT_MODE_CBC; $randSource = MCRYPT_DEV_URANDOM; Note This is not ... Blowfish hash above. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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675 views

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encryption - Which is the best way to hide the PHP source code?

Which is the best way to convert the PHP code to not human readble format? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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668 views

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encryption - Does firebase encrypt data with a unique key per account?

So , I know Firebase encrypt data at rest according to this question. question is do they use a unique key ... is more a compliance concern. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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encryption - Delphi 7 - Encrypt with DEC, and decrypt with PHP OpenSSL

Using: Delphi 7, DEC v5.2 Please refer to this question: Delphi 7 - DCPCrypt - TDCP_rijndael - DecryptString - ... post in a separate question. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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encryption - Decrypt PGP encrypted file with passphrase only in Java

I have a PGP file named 'filename.txt.pgp' that I need to decrypt. When I run decryption from command-line ... just a password? Thank you. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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encryption - Objective-C, how to obfuscate or encrypt NSString?

I have an NSString (which is a path to a file) in my code that I would like to somehow obfuscate or ... any help is appreciated, thank you. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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encryption - What's the easiest way to encrypt a file in c#?

Beforehand : I have read indeed the other topics on SO, but I can't find an answer in them. (The others are ... -)) what is the easiest way.. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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707 views

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encryption - DES Initialization Vector in C#

I am trying to decrypt (using the DES algorithm) data that comes from a third party in C# code. There ... help would be greatly appreciated. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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encryption - OpenSSL AES_cfb128_encrypt C++

I tried to implement a "very" simple encryption/decryption example. I need it for a project where I ... misunderstand the provided functions? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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717 views

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encryption - BitShifting with BigIntegers in Java

I am implementing DES Encryption in Java with use of BigIntegers. I am left ... d15: 11110001111001100110101010100000000000000000000000000000 See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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710 views

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encryption - RSA code in matlab

I want to encrypt a message such as 'HELO1234 and then decrypt to get the original one.I have written RSA code in ... (i),n)] uint8(plain_text); See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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encryption - How to decrypt a Rails 5 session cookie manually?

I have access to config.action_dispatch.encrypted_cookie_salt config.action_dispatch.encrypted_signed_cookie_salt secrets.secret_key_base ... 5. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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788 views

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encryption - Encrypt in Coldfusion and decrypt in C#

Here is the code used to encrypt in coldfusion <cfset strBase64Value = encrypt(strValue,24 character key,AES) ... Base64 as encoding parameter ? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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encryption - Problem transmiting a RSA public key, javaME , bouncy castle

I'm working on the porting of an instance messaging application from Java to JavaME ,that also implements cryptography. ... on the right track. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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624 views

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encryption - Problem transmiting a RSA public key, javaME , bouncy castle

I'm working on the porting of an instance messaging application from Java to JavaME ,that also implements cryptography. ... on the right track. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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640 views

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encryption asymmetric - Encrypting large files using a public key

I need to encrypt a 100KB file using a public key. I've been reading some posts claiming that it is not ... and why this solution is wrong? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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719 views

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encryption - AES - simple encrypt in Java, decrypt with openssl

I am trying to do a simple AES encryption in Java, using Java Cryto, that can then be decrypted in ObjectiveC, ... work. What am I doing wrong. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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523 views

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encryption - What's the recommended hashing algorithm to use for stored passwords?

Given the known weaknesses of MD5 and the recent (May 2009) weaknesses discussed in SHA1, how should new ... have to calculate password hashes. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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678 views

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encryption - .NET cryptography for licence keys?

I want to create a license key, which cryptography algorithm would you recommend? Basically the inputs would be: ... is the most secure? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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encryption - Encrypt/Decrypt String Kotlin

I've created this two extensions in Kotlin to Encrypt/Decrypt strings: fun String.encrypt(seed : String): String { ... What I'm doing wrong? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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encryption - How to extract private keys from an ssh-agent?

ssh-add -l displays that I have 3 RSA keys added to my SSH agent. ssh-add -L displays those public keys. ... an existing tool or a library. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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727 views

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encryption - How to extract private keys from an ssh-agent?

ssh-add -l displays that I have 3 RSA keys added to my SSH agent. ssh-add -L displays those public keys. ... an existing tool or a library. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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620 views

1 answer

encryption - Java Cipher - PBE thread-safety issue

It seems that I have a thread-safety issue with Cipher and/or PBEKeySpec. JDK : 1.8.0_102, 1.8.0_151 ... .openjdk.java.net/browse/JDK-8191177 See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.1k views

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encryption - AES-256 and PKCS7Padding fails in Java

I have a couple of library, C#, PHP and Android where they all encrypt/decrypt a string in the ... .InvalidKeyException: Illegal key size See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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538 views

1 answer

encryption - Simply encrypt a string in C

I'm trying to encrypt a query string on a game I'm making when opening a url. It doesn't have to ... usually makes everything simple for me. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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