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Comments (7)

hohl avatar hohl commented on August 17, 2024

RSA keys are just a tuple of large numbers, so you need to specify what format you would like to get. However I guess you mean the most common BASE64-based OpenSSL format. If you want that, all you need to do is:

[[publicKey dataValue] toString]

If required (for example for storage in PEM files), you need to wrap that string by -----BEGIN RSA PUBLIC KEY----- and -----END RSA PUBLIC KEY----- which is quite common for some applications.

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ElyasNaranjeeSani avatar ElyasNaranjeeSani commented on August 17, 2024

Thanks for your quick reply. Yes I meant BASE64-based.
Actually the code you provided does not compile.

I've also tried below:
NSString *string = [[NSString alloc] initWithData:[keys.public dataValue] encoding:NSUTF8StringEncoding];

But the string is always nil.

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hohl avatar hohl commented on August 17, 2024

Yes, that's what I meant. Can you please checked that keys.public != nil?

([publicKey dataValue] should work fine, theres a test case [MIHRSAKeyTests testDataValue] doing exactly that and at least it seems to pass)

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ElyasNaranjeeSani avatar ElyasNaranjeeSani commented on August 17, 2024

Sure I've checked the keys.public and it was not nil.

Oh,
Seems the below solution worked for me!

MIHRSAKeyFactory *keyFactory = [[MIHRSAKeyFactory alloc] init];
MIHKeyPair *keyPair = [keyFactory generateKeyPair];
MIHRSAPublicKey *publicKey = keyPair.public;
NSData *publicKeyData = [publicKey dataValue];
NSString *publicKeyString = [publicKeyData MIH_base64EncodedString];

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hohl avatar hohl commented on August 17, 2024

Try:

 [[keys.public dataValue] base64EncodedString]

Just had a look at the source of dataValue and it looks like it returns the data as binary (not as base64 string).

I'm sorry, it was quite a while ago when I wrote that lines of code.

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ElyasNaranjeeSani avatar ElyasNaranjeeSani commented on August 17, 2024

We posted together :)
Thank you so much @hohl .

Really appreciate your help.

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hohl avatar hohl commented on August 17, 2024

No problem, hope you'll find MIHCrypto useful for your project.

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