I switched back to the BOINC 4.19 client to avoid the missing signature error, but I'm still seeing it there:
2005-03-16 16:27:46 [climateprediction.net] Deferring communication with project for 1 minutes and 0 seconds
2005-03-16 16:27:46 [climateprediction.net] Deferring communication with project for 1 minutes and 0 seconds
2005-03-16 16:27:56 [climateprediction.net] Finished download of hadsm3se_4.03_powerpc-apple-darwin.zip
2005-03-16 16:27:56 [climateprediction.net] Throughput 192751 bytes/sec
2005-03-16 16:27:56 [climateprediction.net] Started download of 0zfv_000066414.zip
error: verify_file: decrypt_public error 1025
2005-03-16 16:27:56 [climateprediction.net] signature verification error for hadsm3se_4.03_powerpc-apple-darwin.zip
2005-03-16 16:27:56 [climateprediction.net] signature verification error for hadsm3se_4.03_powerpc-apple-darwin.zip
2005-03-16 16:27:56 [climateprediction.net] Checksum or signature error for hadsm3se_4.03_powerpc-apple-darwin.zip
2005-03-16 16:27:56 [climateprediction.net] Checksum or signature error for hadsm3se_4.03_powerpc-apple-darwin.zip
2005-03-16 16:27:57 [climateprediction.net] Finished download of 0zfv_000066414.zip
2005-03-16 16:27:57 [climateprediction.net] Throughput 15806 bytes/sec
2005-03-16 16:27:58 [climateprediction.net] Finished download of hadsm3data_4.03_powerpc-apple-darwin.zip
2005-03-16 16:27:58 [climateprediction.net] Throughput 322475 bytes/sec
error: verify_file: decrypt_public error 1025
2005-03-16 16:27:58 [climateprediction.net] signature verification error for hadsm3data_4.03_powerpc-apple-darwin.zip
2005-03-16 16:27:58 [climateprediction.net] signature verification error for hadsm3data_4.03_powerpc-apple-darwin.zip
2005-03-16 16:27:58 [climateprediction.net] Checksum or signature error for hadsm3data_4.03_powerpc-apple-darwin.zip
2005-03-16 16:27:58 [climateprediction.net] Checksum or signature error for hadsm3data_4.03_powerpc-apple-darwin.zip

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