logo
down
shadow

Convert OpenSSL encryption into native C#


Convert OpenSSL encryption into native C#

By : Luke
Date : January 11 2021, 03:28 PM
wish of those help Key and IV must be specified for openssl enc with -K and -iv as hexadecimal values. This is missing in the C# code, so that essentially the following expressions
code :
tdes.Key = Encoding.UTF8.GetBytes(_key);
tdes.IV = Encoding.UTF8.GetBytes(_key.Substring(0, 16));
tdes.Key = StringToByteArray(_key);
tdes.IV = StringToByteArray(_key.Substring(0, 16));
123456789012345612345678901234561234567890123456


Share : facebook icon twitter icon
How to convert OpenSSL SHA-512 hash to GMP number to use in RSA encryption method

How to convert OpenSSL SHA-512 hash to GMP number to use in RSA encryption method


By : Leidy Tatiana Orozco
Date : March 29 2020, 07:55 AM
I hope this helps . mpz_set_str second parameter must be a string.
The hash argument you pass to SHA1 function is probably not a string. Convert it to a string format before passing it to the mpz_set_str function.
openssl aes encryption bash command != ruby openssl aes encryption

openssl aes encryption bash command != ruby openssl aes encryption


By : Zahra
Date : March 29 2020, 07:55 AM
Any of those help The issue is that b.to_s will not return two characters per byte. This means that any byte value less than 16 will be converted into one byte, and if those bytes are concatenated then the hexadecimal digits of different bytes will be combined, resulting in an invalid IV or key. This fact is hidden by the cryptographic API, which may pad the keys and IV to a correct size, instead of rejecting them (as it should).
You can use unpack("H*") instead to perform the correct encoding of the bytes to hexadecimal. This is also nicely symmetric to pack("H*") used for decoding the hexadecimal values.
openssl -aes-128-ecb encryption doesn't match python Crypto.Cipher AES encryption

openssl -aes-128-ecb encryption doesn't match python Crypto.Cipher AES encryption


By : Diego Rodrigues
Date : March 29 2020, 07:55 AM
hop of those help? In python, encrypting using AES from Crypto.Cipher takes a key (string of 16 bytes) and a plaintext (16 bytes) and outputs a ciphertext (16 bytes).
To achieve the same with OpenSSL you need to first disable salting and padding with -nosalt and -nopad to ensure it takes 16 byte inputs and returns 16 byte outputs. Supplying a password results in OpenSSL deriving its own key. To override this, use the -K option (where the key needs to be given in hex). Alternatively, inputting a password and specifying -p will make OpenSSL spit out the key that it uses.
code :
from Crypto.Cipher import AES
from base64 import b64encode

plaintext = 'Attack at dawn!!'
obj = AES.new("yellow submarine", AES.MODE_ECB)
ciphertext = obj.encrypt(plaintext)

print(b64encode(ciphertext).decode())
enc -aes-128-ecb openssl enc -aes-128-ecb -nosalt -nopad -K 79656c6c6f77207375626d6172696e65 -in plain.txt -out cipher.txt -a
from Crypto.Cipher import AES
from base64 import b64encode

hex_key = 'A35EC217E15C1DD258201A184814897C'
key = bytes.fromhex(hex_key)

plaintext = 'Attack at dawn!!'
obj = AES.new(key, AES.MODE_ECB)
ciphertext = obj.encrypt(plaintext)

print(b64encode(ciphertext).decode())
ruby convert string private key back to openssl class for encryption

ruby convert string private key back to openssl class for encryption


By : YASIN ARAFAT RAKIB
Date : March 29 2020, 07:55 AM
wish help you to fix your issue I have a situation where the private key is stored as a string in the database. ,
How do i convert to OpenSSL:Pkey class
code :
require 'openssl'

key = OpenSSL::PKey::RSA.generate(1024, 3)
encoded_str = key.to_s  #This is your string
puts encoded_str

puts '*' * 30

key = OpenSSL::PKey::RSA.new encoded_str
puts key.to_s  #Should be the same as your string

puts '*' * 30

cipher = OpenSSL::Cipher.new 'DES-EDE3-CBC'
pass_phrase = "hello world"
pem_encoded_str = key.export cipher, pass_phrase
puts pem_encoded_str


--output:--
-----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----
******************************
-----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----
******************************
-----BEGIN RSA PRIVATE KEY-----
Proc-Type: 4,ENCRYPTED
DEK-Info: DES-EDE3-CBC,73C71A1D7325EAAF
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-----END RSA PRIVATE KEY-----
openssl ssl encryption

openssl ssl encryption


By : user3860088
Date : January 02 2021, 06:48 AM
help you fix your problem You can actually let OpenSSL do a lot of the heavy lifting for you.
You can create your networking primitives as before and associate the file descriptors with an Open SSL context, which will handle the SSL handshake, encryption and decryption. I'm glossing over a lot of the details but the sample code on the openssl website and in this book:
Related Posts Related Posts :
  • Passing enum type to Converter with integer value
  • Pool of objects with objects that are already on the scene in advance
  • StatusBar text fade-out when binding using Caliburn.Micro
  • Queryfilter on ApplicationUser in OnModelCreating in ApplicationDbContext creates StackOverflowException
  • How to get record form a different table based on a value from first table with linq expression?
  • Show data in Grid from returned model
  • Using Attributes to Override Data Model Conventions
  • Basic OOP console calculator, result Error
  • Compositon and Repository pattern
  • Multiple using statements with if condition
  • How do i increase a number by 1 in every line that contain the number 1
  • Add binding to elements that are created in codebehind
  • How to add a column in an existing AspNetUsers table
  • Order a list of elements with another list of doubles
  • How to setup a NuGet package to copy content files to output build directory?
  • In SignalR Core using ChannelWriter: Do I need to call TryComplete twice if there's an exception?
  • C# GetProcessesByName: issue with colon
  • c# wpf | create complex object with user-defined name to Serialize into JSON
  • How can I get a instance of a generic list with reflection?
  • WPF XAML - Design time and visibility of textbox
  • EF Core and MySql query is too slow
  • Getting Registered App Display Name from an App Id
  • How to get all variables from a string
  • Delete entity with all childs connected
  • Azure Build agent cant´t find class library referance
  • Initialize Nested Dictionaries in c#
  • .Net Core Binding
  • Loading a pop up page in ASP.net through a js file
  • How to pass alert or notification message from controller to View?
  • C# to pause, turn on ssas server, backup cube.... how to?
  • How to execute DataTable.Select() for a column of custom class type for a particular element in that C#
  • how to connect mysql8.0 with C#
  • Passing incorrect values into MultiValueConverter by MultiBinding
  • Can i use IEnumerator as Update func?
  • How to convert API Json response to C# Array?
  • Blazor Textfield Oninput User Typing Delay
  • Performing both layout and render transform results in wrong output
  • uwp beforetextchanged cursor moving in front of text
  • How to keep duplicates from a string[] exclude words from a List and print them out
  • .Net Core Strings.Asc/Mid/Chr/Len missing even after importing Microsoft.VisualBasic
  • How to return to previous search page without being asked to Confirm Form Re-submission and keeping the results on ASP.N
  • How set a identity scaffolding item/page how initial page in asp.net MVC core?
  • LINQ isn't calling Dispose on my IEnumerator when using Union and Select, expected behavior or bug?
  • What is "ByteArray.uncompress()" in AS3 equivalent to in C#?
  • Getting a specific letter from a string variable for my simple guessing game for clues
  • Send an email with Outlook without a subject --- dialog box issue
  • passing List<MyModel> from my controller in the "WebInterfaceProject" to the processor method in "D
  • How to convert Word document created from template by OpenXML into MemoryStream?
  • How can I make a single slider that changes the color of an object?
  • Remap JSON parameter in c#
  • What is the difference between "this ref" and "ref this" when talking about C# 7.2 ref extension met
  • Accessing Properties in Razor Pages
  • How to get SOAP element value
  • Projection after Group
  • C# error cannot convert sytem.text.regularexpressions.match to string
  • Issues with Save/Load System in a Text Based Adventure game made with ScriptableObjects in Unity
  • VS2019 MSBuild.exe - ASP .Net MVC project fails to publish when using PublishProfile, but works when using OutDir parame
  • Does <pages validateRequest="false" /> in Web.config still matter?
  • How to send new request to redirect URL with new access token
  • Attempt to invoke virtual method on a null object reference Xamarin LockScreen
  • shadow
    Privacy Policy - Terms - Contact Us © festivalmusicasacra.org