error.0400008d.RSA routines.OPENSSL_internal.TOO_MANY_ITERATIONS

[avinashboy]

Recently, I've been getting this issue while creating the public key in debug mode. However, if I build the APK and test it on an Android box or Android TV,

I get this error: error.0400008d:RSA routines:OPENSSL_internal:TOO_MANY_ITERATIONS in Flutter.

[avinashboy]

Device info is here:

Android TV OS Name: 11
Ram: 4GB
Model: Android 11RTC Mini PC
Device name: Leoxsys android mini pc

[jonasfj]

What are you trying to do?

I'm not a crypto expert, certainly not an embedded expert, but could this be a combination of low powered platform, little randomness available and aiming for large primes?

A quick search yielded: openssl/openssl#4151

It's possible we should figure out what the error is, and print a nicer message.

Now I wouldn't dare to give advice on how to do cryptographic protocols, but it's thinkable that smaller primes (fewer bits), or a different primitive like ECDSA might have differently.

[TimoshN]

in 32bit system

webcrypto.dart/lib/src/third_party/boringssl/generated_bindings.dart

Line 2993 in 22d6751

typedef BN_ULONG = ffi.Uint64;

produce incorrect BIGINT value set in

webcrypto.dart/lib/src/third_party/boringssl/generated_bindings.dart

Line 243 in 22d6751

ffi.NativeFunction<ffi.Int Function(ffi.Pointer<BIGNUM>, BN_ULONG)>>(

as a temporary fix you may change typedef BN_ULONG = ffi.Uint64; to ffi.UnsignedLong

[EricApostal]

Has there been any attempts to fix this? I am currently running the following on a Galaxy Watch 2. This works completely fine on a Google Pixel 9, Fedora Linux desktop, and a Windows desktop.

await RsaOaepPrivateKey.generateKey(
      2048,
      BigInt.from(65537),
      Hash.sha256,
    );

It works fine on all devices except the Galaxy Watch 2, citing the exact same TOO_MANY_ITERATIONS error.