1e41f4b71Sopenharmony_ci# Certificate Error Codes 2e41f4b71Sopenharmony_ci 3e41f4b71Sopenharmony_ci> **NOTE** 4e41f4b71Sopenharmony_ci> 5e41f4b71Sopenharmony_ci> This topic describes only module-specific error codes. For details about universal error codes, see [Universal Error Codes](../errorcode-universal.md). 6e41f4b71Sopenharmony_ci 7e41f4b71Sopenharmony_ci## 19020001 Memory Error 8e41f4b71Sopenharmony_ci 9e41f4b71Sopenharmony_ci**Error Message** 10e41f4b71Sopenharmony_ci 11e41f4b71Sopenharmony_ciMemory error. 12e41f4b71Sopenharmony_ci 13e41f4b71Sopenharmony_ci**Possible Causes** 14e41f4b71Sopenharmony_ci 15e41f4b71Sopenharmony_ciThe memory allocation failed. 16e41f4b71Sopenharmony_ci 17e41f4b71Sopenharmony_ci**Solution** 18e41f4b71Sopenharmony_ci 19e41f4b71Sopenharmony_ci1. Check whether the system is running properly. 20e41f4b71Sopenharmony_ci2. Check whether the service data is too long. 21e41f4b71Sopenharmony_ci 22e41f4b71Sopenharmony_ci## 19020002 Runtime Error 23e41f4b71Sopenharmony_ci 24e41f4b71Sopenharmony_ci**Error Message** 25e41f4b71Sopenharmony_ci 26e41f4b71Sopenharmony_ciRuntime error. 27e41f4b71Sopenharmony_ci 28e41f4b71Sopenharmony_ci**Possible Causes** 29e41f4b71Sopenharmony_ci 30e41f4b71Sopenharmony_ciAn unexpected error occurs. 31e41f4b71Sopenharmony_ci 32e41f4b71Sopenharmony_ci**Solution** 33e41f4b71Sopenharmony_ci 34e41f4b71Sopenharmony_ciCheck whether the system is running properly. 35e41f4b71Sopenharmony_ci 36e41f4b71Sopenharmony_ci## 19030001 Crypto Operation Error 37e41f4b71Sopenharmony_ci 38e41f4b71Sopenharmony_ci**Error Message** 39e41f4b71Sopenharmony_ci 40e41f4b71Sopenharmony_ciCrypto operation error. 41e41f4b71Sopenharmony_ci 42e41f4b71Sopenharmony_ci**Possible Causes** 43e41f4b71Sopenharmony_ci 44e41f4b71Sopenharmony_ciAn error occurs when the cryptography framework interacts with a third-party algorithm library. 45e41f4b71Sopenharmony_ci 46e41f4b71Sopenharmony_ci**Solution** 47e41f4b71Sopenharmony_ci 48e41f4b71Sopenharmony_ci1. Check whether the input parameters are correct. 49e41f4b71Sopenharmony_ci2. Check whether the third-party algorithm library functions properly. 50e41f4b71Sopenharmony_ci 51e41f4b71Sopenharmony_ci## 19030002 Certificate Signature Verification Failed 52e41f4b71Sopenharmony_ci 53e41f4b71Sopenharmony_ci**Error Message** 54e41f4b71Sopenharmony_ci 55e41f4b71Sopenharmony_ciThe certificate signature verification failed. 56e41f4b71Sopenharmony_ci 57e41f4b71Sopenharmony_ci**Possible Causes** 58e41f4b71Sopenharmony_ci 59e41f4b71Sopenharmony_ciIncorrect certificate signature information is found during the signature verification. 60e41f4b71Sopenharmony_ci 61e41f4b71Sopenharmony_ci**Solution** 62e41f4b71Sopenharmony_ci 63e41f4b71Sopenharmony_ciCheck whether the certificate is correct. 64e41f4b71Sopenharmony_ci 65e41f4b71Sopenharmony_ci## 19030003 Certificate Has Not Taken Effect 66e41f4b71Sopenharmony_ci 67e41f4b71Sopenharmony_ci**Error Message** 68e41f4b71Sopenharmony_ci 69e41f4b71Sopenharmony_ciThe certificate has not taken effect. 70e41f4b71Sopenharmony_ci 71e41f4b71Sopenharmony_ci**Possible Causes** 72e41f4b71Sopenharmony_ci 73e41f4b71Sopenharmony_ciThe certificate has not taken effect. The effective time of the certificate is later than the current system time or the time specified by the service. 74e41f4b71Sopenharmony_ci 75e41f4b71Sopenharmony_ci**Solution** 76e41f4b71Sopenharmony_ci 77e41f4b71Sopenharmony_ci1. Check whether the certificate is correct. 78e41f4b71Sopenharmony_ci2. Check whether the system time is correct. 79e41f4b71Sopenharmony_ci3. Compare the certificate effective time with the current system time to determine whether the certificate has taken effect. 80e41f4b71Sopenharmony_ci 81e41f4b71Sopenharmony_ci## 19030004 Certificate Expired 82e41f4b71Sopenharmony_ci 83e41f4b71Sopenharmony_ci**Error Message** 84e41f4b71Sopenharmony_ci 85e41f4b71Sopenharmony_ciThe certificate has expired. 86e41f4b71Sopenharmony_ci 87e41f4b71Sopenharmony_ci**Possible Causes** 88e41f4b71Sopenharmony_ci 89e41f4b71Sopenharmony_ciThe certificate has expired. The certificate expiration time is earlier than the current system time or the time specified by the service. 90e41f4b71Sopenharmony_ci 91e41f4b71Sopenharmony_ci**Solution** 92e41f4b71Sopenharmony_ci 93e41f4b71Sopenharmony_ci1. Check whether the certificate is correct. 94e41f4b71Sopenharmony_ci2. Check whether the system time is correct. 95e41f4b71Sopenharmony_ci3. Compare the certificate expiration time with the current system time to determine whether the certificate has expired. 96e41f4b71Sopenharmony_ci 97e41f4b71Sopenharmony_ci## 19030005 Failed to Obtain the Certificate Issuer 98e41f4b71Sopenharmony_ci 99e41f4b71Sopenharmony_ci**Error Message** 100e41f4b71Sopenharmony_ci 101e41f4b71Sopenharmony_ciFailed to obtain the certificate issuer. 102e41f4b71Sopenharmony_ci 103e41f4b71Sopenharmony_ci**Possible Causes** 104e41f4b71Sopenharmony_ci 105e41f4b71Sopenharmony_ciThe certificate issuer cannot be obtained during certificate verification. 106e41f4b71Sopenharmony_ci 107e41f4b71Sopenharmony_ci**Solution** 108e41f4b71Sopenharmony_ci 109e41f4b71Sopenharmony_ciCheck whether the certificate is correct. 110e41f4b71Sopenharmony_ci 111e41f4b71Sopenharmony_ci## 19030006 Key Cannot be Used for Signing a Certificate 112e41f4b71Sopenharmony_ci 113e41f4b71Sopenharmony_ci**Error Message** 114e41f4b71Sopenharmony_ci 115e41f4b71Sopenharmony_ciThe key cannot be used for signing a certificate. 116e41f4b71Sopenharmony_ci 117e41f4b71Sopenharmony_ci**Possible Causes** 118e41f4b71Sopenharmony_ci 119e41f4b71Sopenharmony_ciThe key cannot be used to sign certificates. 120e41f4b71Sopenharmony_ci 121e41f4b71Sopenharmony_ci**Solution** 122e41f4b71Sopenharmony_ci 123e41f4b71Sopenharmony_ciCheck whether the certificate is correct. 124e41f4b71Sopenharmony_ci 125e41f4b71Sopenharmony_ci## 19030007 Key Cannot be Used for Digital Signature 126e41f4b71Sopenharmony_ci 127e41f4b71Sopenharmony_ci**Error Message** 128e41f4b71Sopenharmony_ci 129e41f4b71Sopenharmony_ciThe key cannot be used for digital signature. 130e41f4b71Sopenharmony_ci 131e41f4b71Sopenharmony_ci**Possible Causes** 132e41f4b71Sopenharmony_ci 133e41f4b71Sopenharmony_ciThe key cannot be used for digital signature. 134e41f4b71Sopenharmony_ci 135e41f4b71Sopenharmony_ci**Solution** 136e41f4b71Sopenharmony_ci 137e41f4b71Sopenharmony_ciCheck whether the certificate is correct. 138