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(Lianja) Everyware API RSA Encrypt JSON

See more RSA Examples

Demonstrates how to RSA encrypt JSON using everyware.com's RSA public key.

For more information, see https://docs.everyware.com/docs/access-iframe#sample-json--encrypted-payload

Chilkat Lianja Extension Download

Chilkat Lianja Extension

// This example assumes the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

// First build the JSON to be encrypted.
loJson = createobject("CkJsonObject")
loJson.UpdateString("provider_key","USER GUID HERE")
loJson.UpdateString("menu_item","payment")
loDt = createobject("CkDateTime")
loDt.SetFromCurrentSystemTime()
loJson.UpdateString("date_time",loDt.GetAsUnixTimeStr(.F.))

// This build JSON like the following:

// {
//     "provider_key": "USER GUID HERE",
//     "menu_item": "payment",
//     "date_time": "1588163411"
// }

// When we sign, we'll want to sign the most compact JSON possible
loJson.EmitCompact = .T.

// Everyware's RSA public key is at:  https://docs.everyware.com/docs/everyware-public-rsa-key
loSb = createobject("CkStringBuilder")
llBCrlf = .T.
loSb.AppendLine("-----BEGIN PUBLIC KEY-----",llBCrlf)
loSb.AppendLine("MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAxNbflxUSWQ3XJ1N9dAoh",llBCrlf)
loSb.AppendLine("k+uaiFsg3wkPi9LGS/mH8DtHBgZxKyz+oQBDtnDd9FDEo0ql7MMgCMsTAv27W5vk",llBCrlf)
loSb.AppendLine("Pu0rm6zhcTeYquWEuVCS7VtVsyTATr0Z9WhqNeZlIRurovJAXl2jRDX6QeY5dayC",llBCrlf)
loSb.AppendLine("ubwyG4lBWE4fCakGY6zlh+oaElK0rvblqjYoEg3dn4KPRCYGof8OFxLptHThD4cE",llBCrlf)
loSb.AppendLine("T30j+utVafhO0HRyJ4iR3Pigb4GXdWBtJEEEWddZJizMkjFQkyUAoYLOT8EJ2TW3",llBCrlf)
loSb.AppendLine("Tz8SvAuHBUEFcPWTSTMAG/bSp5wrYBTXaeEhx+wrYa60OruHuzgmhzKyQVuYlCNJ",llBCrlf)
loSb.AppendLine("HdbnassuIRjjSNo25o4AdSlWwpGfBZjAiyEInR+KGpHdhKTxSekJxiwiXUS0UfSG",llBCrlf)
loSb.AppendLine("prOpd5PzWaAR7DvjLsdmR9XffxvJCVxC735gLK7hDJKjCajDPHVDr8FSL8xMlrq0",llBCrlf)
loSb.AppendLine("nKxtsHeRl1yzoGrRr12+9MiQnHtpqROTNXcXdwe3v+Vh8V5k8v8oIrcgh1+/N7Bd",llBCrlf)
loSb.AppendLine("NiRsy1gFHBdu/he/KcDRT/9/acQFMPLQueGfZxUvU5As6pEONjtKX2MUg2fMF6Rc",llBCrlf)
loSb.AppendLine("sQVVrLzg0g7EcuHGfuPeKfD/716MvS8NU7rX+2soijCSQv/e18PJPMVDlcMXjnup",llBCrlf)
loSb.AppendLine("PPx1tStemesavFlj1okhS6UCAwEAAQ==",llBCrlf)
loSb.AppendLine("-----END PUBLIC KEY-----",llBCrlf)

loPubkey = createobject("CkPublicKey")
llSuccess = loPubkey.LoadFromString(loSb.GetAsString())
if (llSuccess = .F.) then
    ? loPubkey.LastErrorText
    release loJson
    release loDt
    release loSb
    release loPubkey
    return
endif

loRsa = createobject("CkRsa")
llSuccess = loRsa.ImportPublicKeyObj(loPubkey)
if (llSuccess = .F.) then
    ? loRsa.LastErrorText
    release loJson
    release loDt
    release loSb
    release loPubkey
    release loRsa
    return
endif

// We probably need a base64Url encoded encrypted key.
// Using straight-up base64 would potenially include chars that are not URL safe (i.e. have special meanings in URLs)
loRsa.EncodingMode = "base64url"

lcEncryptedJson = loRsa.EncryptStringENC(loJson.Emit(),.F.)

// Build the URL
// Such as:  https://portal.everyware.com/Account/LoginMenu?data={Base64Url_encrypted_JSON}
loSbUrl = createobject("CkStringBuilder")
loSbUrl.Append("https://portal.everyware.com/Account/LoginMenu?data=")
loSbUrl.Append(lcEncryptedJson)

? loSbUrl.GetAsString()


release loJson
release loDt
release loSb
release loPubkey
release loRsa
release loSbUrl

 

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