How can I obtain the signature and SHA1 values for my HarmonyOS app?

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Question

How can I obtain the signature and SHA1 values for my HarmonyOS app?

Short Answer

• The payment public key is obtained when activating the in-app payment service on the Huawei Developer Alliance.
• Use the Sign.getSignSpec, Sign.update, and Sign.sign methods to generate a data signature.
• It is not possible to obtain the SHA1 fingerprint of the app package. Instead, you will get the SHA256 hash value of the app signing certificate (.cer file).

Applicable Scenarios

• When enabling in-app payment services and requiring a payment public key.
• When generating and verifying RSA signatures using HarmonyOS APIs.
• When working with app signing certificates and verifying app identity.

Reference Link

https://developer.huawei.com/consumer/en/doc/harmonyos-guides/crypto-rsa-sign-sig-verify-pss

https://developer.huawei.com/consumer/en/doc/harmonyos-references-V13/js-apis-bundlemanager-bundleinfo-V13#signatureinfo

Written by Arif Emre Ankara