private async Task <bool> loadKeys(FunctionContext <dynamic> fc)
{
fc.Log.LogInformation("Loading Keys");
TableOperation getLatestKey = TableOperation.Retrieve <PrivateKeyTE>("ACCESS_PRIVATE", "LATEST");
TableResult result = await fc.Table.ExecuteAsync(getLatestKey);
PrivateKeyTE pke = result.Result as PrivateKeyTE;
if (pke == null)
{
fc.Log.LogInformation("No private key found.");
return(false);
}
else
{
fc.Log.LogInformation("Private Key found with PKID: {PublicKeyId}", pke.PublicKeyId);
if (pke.Expires != null && DateTime.Now < pke.Expires)
{
this.keyId = pke.PublicKeyId;
RSA rsa = RSA.Create();
rsa.ImportRSAPrivateKey(Convert.FromBase64String(pke.PrivateKey), out _);
this.privateRSAKey = rsa;
return(true);
}
else
{
fc.Log.LogInformation("Private Key is expired!");
return(false);
}
}
}
private async Task storePrivateKey(FunctionContext <dynamic> fc, byte[] privateKeyAsBytes, DateTime expiresIn)
{
PrivateKeyTE pk = new PrivateKeyTE();
pk.PartitionKey = "ACCESS_PRIVATE";
pk.RowKey = "LATEST";
pk.PublicKeyId = this.keyId;
pk.Expires = expiresIn;
pk.AssignePrivateKey(privateKeyAsBytes);
TableOperation insertOrMerge = TableOperation.InsertOrReplace(pk);
await fc.Table.ExecuteAsync(insertOrMerge);
}
