Recent questions tagged encryption

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encryption - Easy way to Encrypt/Decrypt string in Android

My question is how to encrypt a String: String AndroidId; @Override public void onCreate(Bundle savedInstanceState) { ... storing a MAC address. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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encryption - How does a cryptographically secure random number generator work?

I understand how standard random number generators work. But when working with crytpography, the random numbers ... no repeatable patterns? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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encryption - How to implement password protection for individual files?

I'm writing a little desktop app that should be able to encrypt a data file and protect it with a password ... on different workstations, etc.). See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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encryption - Using SHA1 and RSA with java.security.Signature vs. MessageDigest and Cipher

I'm trying to understand what the Java java.security.Signature class does. If I compute an SHA1 message digest, ... return string.toString(); } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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encryption - JCE cannot authenticate the provider BC in java swing application

I am creating a swing based application in Java which uses some encryption technique. But javax.crypto.KeyGenerator. ... what is the problem? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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encryption asymmetric - Truststore and Keystore Definitions

What's the difference between a keystore and a truststore? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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encryption - RSA Public Key format

Where can i find some documentation on the format of an RSA public key? An RSA public key formatted by OpenSSH: ... Key to XML Signature ?? Decode PEM formats Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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encryption - Java, How to implement a Shift Cipher (Caesar Cipher)

I want to implement a Caesar Cipher shift to increase each letter in a string by 3. I am receiving this error: ... to increase each letter in a string by 3? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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encryption - Is it possible to hide/encode/encrypt php source code and let others have the system?

Is it possible to hide/encode/encrypt the php file/source code, and let others have the system installed and run on their machine? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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encryption - How to use OpenSSL to encrypt/decrypt files?

I want to encrypt and decrypt one file using one password. How can I use OpenSSL to do that? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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encryption - Converting a Java Keystore into PEM Format

I am trying to convert from a Java keystore file into a PEM file using keytool and openssl applicactions. ... conversion method from jks to pem is preferable. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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encryption - Why is security through obscurity a bad idea?

Closed. This question is off-topic. It is not currently accepting answers. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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encryption - How to decrypt OpenSSL AES-encrypted files in Python?

OpenSSL provides a popular (but insecure - see below!) command line interface for AES encryption: openssl aes-256- ... ? Use NaCl/libsodium if you possibly can. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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encryption - PHP AES encrypt / decrypt

I found an example for en/decoding strings in PHP. At first it looks very good but it wont work :-( Does anyone know what the ... -?(?á ^ y?~F'??ó-í ?e2á_B‰?- Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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encryption - Initial bytes incorrect after Java AES/CBC decryption

What's wrong with the following example? The problem is that the first part of the decrypted string is nonsense. ... Exception ex) { ex.printStackTrace(); } } Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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encryption - How to encrypt String in Java

What I need is to encrypt string which will show up in 2D barcode(PDF-417) so when someone ... without much complication in achieving high security standards? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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encryption - Encrypting & Decrypting a String in C#

This question already has answers here: Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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encryption - Can't resolve this error in python ceaser cipher

this is the code: import sys LETTERS = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' def decrypt_caesor(message): for key in range( ... /65834659/cant-resolve-this-error-in-python-ceaser-cipher...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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encryption - Can an ECDH key be derived from an ECDSA key?

I have an ECDSA key and I would like to create an ECDH key from it for encryption purposes, is it possible to ... /questions/65844236/can-an-ecdh-key-be-derived-from-an-ecdsa-key...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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encryption - How to convert encrypted python file by NXCrypt to exe

Tried to convert to exe in Linux with PyInstaller with no success - utf-8' codec can't decode byte 0xf3 in ... /65866225/how-to-convert-encrypted-python-file-by-nxcrypt-to-exe...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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encryption - What is missing from the AES Validation Standard Pseudocode for the Monte Carlo Tests?

I'm trying to use the prescribed validation procedure for AES-128 in CBC mode, as defined in the NIST ... missing-from-the-aes-validation-standard-pseudocode-for-the-monte-carlo...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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encryption - Storing sensitive information in session

We are developing a banking app where a sensitive information field would need to be required to ... stackoverflow.com/questions/65878644/storing-sensitive-information-in-session...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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encryption - How to decrypt AES 128 encrypted HLS stream when URI for key is "k/timestamp"

I have downloaded 1784 .ts files and they are AES 128 encrypted. The .m3u8 file has #EXT-X-KEY:METHOD=AES-128,URI= ... -aes-128-encrypted-hls-stream-when-uri-for-key-is-k-timestamp...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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encryption - C# Org.BouncyCastle.Crypto.InvalidCipherTextException: 'mac check in GCM failed'

Im trying to code a Chrome Cookie Decryptor in C#. Im using System.Data.Sqlite to read the DB and ... -sharp-org-bouncycastle-crypto-invalidciphertextexception-mac-check-in-gcm-fa...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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encryption - The key not valid for use in specified state while using -pri

I am following this link to encrypt/decrypt passwords: https://docs.microsoft.com/en-us/previous-versions/aspnet/yxw286t2( ... -not-valid-for-use-in-specified-state-while-using-pri...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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encryption - Encrypting just the password in server.xml while using the default Http11Nio2Protocol as protocol for keystores in tomcat

Encrypt tomcat keystore password With reference to the above question. What if I want to just encrypt the ... the-password-in-server-xml-while-using-the-default-http11nio2pro...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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encryption - python - decrypt .csv file with openssl

I'm receiving from a counterpart encrypted .csv files. I can successfully decrypt those using open ssl and ... .com/questions/65950466/python-decrypt-csv-file-with-openssl...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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encryption - Play AES encrypted video in ExoPlayer offline

I am trying to play from local storage an encrypted video using ExoPlayer. The command used to encrypt the ... com/questions/65950956/play-aes-encrypted-video-in-exoplayer-offline...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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