I want to know what this pair of keys is for.

[songchunlai]

Public key: AihRvNoIbTn85FZRYNZRcT+i6KpU+maCsEqr3Q5q+LDB5tH7Tz2qQ38V
Private key: AigKVje8******************************************aCiTCB

022851bcda086d39fce4565160d651713fa2e8aa54fa6682b04aabdd0e6af8b0c1e6d1fb4f3daa4 37f15
02280a56***********************************************************a1fbf4e682893081

[Antidote47k]

These are not bitcoin keys. They're the RSA key materials from Westwood's MIX game archive format (e.g. Command & Conquer).

This first value is the RSA public modulus

Public key: AihRvNoIbTn85FZRYNZRcT+i6KpU+maCsEqr3Q5q+LDB5tH7Tz2qQ38V

and this is corresponding private exponent

Private key: AigKVje8******************************************aCiTCB

The public exponent is 65537 (0x10001). They were part of the key derivation/encryption of encrypted MIX archives. So if you found these in relation to an old game archive, that’s their primary purpose. They don’t necessarily have anything to do with bitcoin wallets or private keys.

[bitmover]

These are not bitcoin keys. They're the RSA key materials from Westwood's MIX game archive format (e.g. Command & Conquer).

This first value is the RSA public modulus

What a great game

I played a lot of this game when I was a teenager
C&C

[Cinexa]

In addition with Antidote47k,

A real bit coin key does not resemble this at all. WIF private keys begin with 5, K, or L. Hex private keys (as shown below are 64hex characters).

Addresses begin with a 1, 3, or bc1.

These are definitely not them but Base64 blobs like these are.

Therefore if you found these stored alongside old .mix files, that's exactly what they would be. They will never ever be used to unlock a wallet. As always, if you have ever stumbled across a bit coin key on accident, do not share it with anyone in public. Anyone who read the discussion could just sweep the key away if it was really bit coin private key.

[SquirrelJulietGarden]

A real bit coin key does not resemble this at all. WIF private keys begin with 5, K, or L. Hex private keys (as shown below are 64hex characters).

Addresses begin with a 1, 3, or bc1.

More details from Bitcoin Wiki and a book Mastering Bitcoin of Andreas Antonopoulos.

List of Bitcoin address prefixes.
Base58check version prefix and encoded result examples .

|

Type

|

Version prefix (hex)

|

Base58 result prefix

|

|

Address for pay to public key hash (P2PKH)

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0x00

|

1

|

|

Address for pay to script hash (P2SH)

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0x05

|

3

|

|

Testnet Address for P2PKH

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0x6F

|

m or n

|

|

Testnet Address for P2SH

|

0xC4

|

2

|

|

Private Key WIF

|

0x80

|

5, K, or L

|

|

BIP32 Extended Public Key

|

0x0488B21E

|

xpub

|

[PostQuantumBTC]

A real bit coin key does not resemble this at all. WIF private keys begin with 5, K, or L. Hex private keys (as shown below are 64hex characters).

Addresses begin with a 1, 3, or bc1.

In addition to this, bitcoin public key for WIF private keys will start with 02 and 03 for bitcoin addresses that are compressed which their private key start with K or L.

The private keys that start with 5 are not compressed, their public keys will start from 04.

There is still the HD wallets
The private key will start with xprv, yprv and zprv
The public key will start with xpub, ypub and zpub

[DesmondHayes]

Funny bit of gaming history: Westwood accidentally shipped its RSA private key inside a keys.ini file in a Tiberian Sun MIX archive. 😂 The key was supposed to protect the MIX header, but apparently someone forgot that putting the private key inside the game is not exactly the best place to hide a secret.

[BitMaxz]

The public key that I know that is usually generated from bitaddress is 130 characters and 66 characters for compressed public key.

You might be trying to find something in your old hard disk and thinking of a Bitcoin backup key before. Since you don't know what it looks like, you ask it here directly to know if this key is related to your old wallet or not.