Can't use encrypted password for docker task credentials

Issue Summary

Encrypt password with Specs > Bamboo Specs encryption and then use it as password for Docker pull\push task at another Bamboo instance. Bamboo fails to execute this task

Steps to Reproduce

1. See description

Expected Results

Provided value is encrypted when entered and decrypted when required

Actual Results

Task fails with error:

Caused by: org.bouncycastle.crypto.InvalidCipherTextException: pad block corrupted
	at org.bouncycastle.crypto.paddings.PKCS7Padding.padCount(Unknown Source)
	at org.bouncycastle.crypto.paddings.PaddedBufferedBlockCipher.doFinal(Unknown Source)
	at com.atlassian.bamboo.crypto.instance.SecretEncryptionServiceInternalImpl.decrypt(SecretEncryptionServiceInternalImpl.java:131)
	... 105 more

Workaround

Currently there is no known workaround for this behavior. A workaround will be added here when available