1. How To Generate Rsa Key
2. How To Generate Rsa Key Pair
3. Create Rsa Key Pair
4. Generate Rsa Private Key

Hi,
I'm developing a Xamarin Forms app, and in iOS I want to create a RSA key-pair and be able to store the key-pair in the iOS KeyChain and retrieve the publicKey from iOS KeyChain anytime i want to. However i'm facing some problems due to the lack of documentation available on the internet about this issue.
So i created my RSA key pair this way, since i have to send the public key in DER format to a server (using BouncyCastle).
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Generate a new secret key. To generate the key, follow the same process as the one for generating a new private key. You use the Security library in each case. Import encrypted keys more securely. Android 9 (API level 28) and higher allow you to import encrypted keys securely into the Keystore using an ASN.1‑encoded key format. Creating an SSH Key Pair for User Authentication. The simplest way to generate a key pair is to run ssh-keygen without arguments. In this case, it will prompt for the file in which to store keys. Here's an example: klar (11:39) ssh-keygen Generating public/private rsa key pair. AlarmClock; BlockedNumberContract; BlockedNumberContract.BlockedNumbers; Browser; CalendarContract; CalendarContract.Attendees; CalendarContract.CalendarAlerts.

How To Generate Rsa Key

• Generate a new secret key. To generate the key, follow the same process as the one for generating a new private key. You use the Security library in each case. Import encrypted keys more securely. Android 9 (API level 28) and higher allow you to import encrypted keys securely into the Keystore using an ASN.1‑encoded key format.
• Android RSA Keypair Generation - Should I use Standard Java/Bouncy Castle/Spongy Castle/JSch/Other? Of a resource for anyone that has problems with RSA key.
• $ ssh-keygen -t rsa -b 4096 -C 'youremail@example.com' This creates a new ssh key, using the provided email as a label. Generating public/private rsa key pair. When you're prompted to 'Enter a file in which to save the key,' press Enter. This accepts the default file location.

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How To Generate Rsa Key Pair

Generate a private key from a certificate. and then i need to store the keys on KeyChain but i can't find anything that helps me so i tried this way (byte[] value = RsaBytes):

First, i don't know if this is the best way to store anything is iOS KeyChain.
Second, when i get the 'ValueData' from KeyChain, i can't convert it back to a byte[] so i can't get my publicKey again anymore.
I get the key using the following method

Create Rsa Key Pair

and i try to convert it back to a byte[] that represents my public key using the following methods:

No one of them is the same as RsaBytes:

So, summing up all the problems
1 - I don't know the best way to create an RSA key pair in iOS and get publicKey DER-encoded (so I used BouncyCastle)
2 - Don't know how to store it properly on KeyChain
3 - I can access the information i stored, however it's useless since I can't convert it back to a publicKey
4 - When trying to access the information the user should be prompt to use TouchID, always.

Generate Rsa Private Key

I can't find samples of this in the internet.. I would really appreciate some help.
Many thanks to everyone.