Can't able to decrypt the data encrypted in C#.net. about node-rijndael HOT 5 CLOSED

Your encrypted data uses PKSC7, but the example rijndael script uses null-padding.

from node-rijndael.

I am sorry your code didn't work even with
paddingmode.None
or
paddingmode.Zeros

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What is the default block size for RijndaelManaged? Please post your sample data when using paddingmode.Zeros and a block size of 256 bits.

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The default block size for the RijndaelManaged algorithms is 128 bits.

Here is the parameterless constructor of Rijndeal class (RijndaelManaged inherits form that class)
protected Rijndael()
{
this.KeySizeValue = 256;
this.BlockSizeValue = 128;
this.FeedbackSizeValue = this.BlockSizeValue;
this.LegalBlockSizesValue = Rijndael.s_legalBlockSizes;
this.LegalKeySizesValue = Rijndael.s_legalKeySizes;
}

for more info please follow
https://msdn.microsoft.com/en-us/library/system.security.cryptography.rijndaelmanaged(v=vs.110).aspx

//sample data
Here all the information is base64 string and assuming paddingmode Zeros with KeySize 256 bit.
Rindael IV is +rNLB50lMq/Hc25cSN9avg==
Rindeal Key is oQNF+m9WVjIEL+ZS1l5h7AZLtzpnjTpxpyA1l3xju9c=
Encrypted cipher is 0BUtWkgiGCXW6hJi9g8nww==

The expected output after decryption is "Hello, World!"(quotes for clarity).

from node-rijndael.

This library only supports rijndael with a block size of 256-bits, and you're using RijndaelManaged with a block size of 128-bits, so your use-case is not supported.

AES is a form of rijndael that only supports a 128-bit block size. You should check out the built-in crypto library.

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