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Editorial Team
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Asked: 2026-06-04T07:24:22+00:00

is there any equivalent to BN_hex2bn in C# , I wanna make BigInteger from

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is there any equivalent to BN_hex2bn in C# , I wanna make BigInteger from hex string!

am using BouncyCastel to create BigIntegers

BigInteger N = new BigInteger("894B645E89E1535BBDAD5B8B290650530801B18EBFBF5E8FAB3C82872A3E9BB7", 16);

now when I compare the value of BouncyCastel's BigInteger to OpenSSL's BN_hex2bn it gives me different values 

openssl = 894B645E89E1535BBDAD5B8B290650530801B18EBFBF5E8FAB3C8287

BouncyCastel = 62100066509156017342069496140902949863249758336000796928566441170293728648119

I don’t understand what is causing it to has a different value , or how can I get the same value as OpenSSL !!!?

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1 Answer

  1. Editorial Team
    0894B645E89E1535BBDAD5B8B290650530801B18EBFBF5E8FAB3C82872A3E9BB7

    is the hexadecimal representation of the decimal number:

    62100066509156017342069496140902949863249758336000796928566441170293728648119

    This means that both numbers are equal. You’re just looking at them in differens bases.

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