Google launches bank-grade crypto custody tool with split-key technology
Current overview (not historical)
Google unveiled a bank-grade cryptocurrency custody tool featuring split-key technology. The system divides signature keys into shards stored across independent systems, requiring a threshold signature to complete transactions, ensuring full keys never aggregate in a single location. The tool allows banks to hold one shard each on their own hardware, Google Cloud, or competing cloud providers. Before each signature, Google's confidential space policy engine verifies transfers against limits, destination restrictions, and approval rules.
Written with AI from the reporting · updated 10/28/2026
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- 1Unclassified fact stationOct 29, 00:00recorded Oct 29, 01:30single source
Google推出基于分片密钥的银行级加密货币保管工具
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- Action：
- 推出
- Object：
- Google Multi-Party Compute
- Occurred (fact side)：
- Oct 29, 00:00
- Published (valid side)：
- Oct 29, 01:26
- First seen (known side)：
- Oct 29, 01:30
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- Bitcoin MagazineRelated fact: single sourceGoogle unveils bank-grade crypto custody tool built on split keys
Report first recorded Oct 29, 01:30
Google is set to debut Google Multi-Party Compute, a crypto custody system that splits signing keys across separate systems, at its digital assets symposium in New York. The product, currently in private preview with financial institutions, applies multi-party computation to signing keys, requiring a set number of fragments to sign a transaction without ever assembling the full key in one place. Google plans commercial availability in early 2027 and has not disclosed pricing. The system allows institutions to set thresholds such as two-of-three or five-of-seven, with a policy engine inside Google's Confidential Space checking transfers against limits and approval rules before any signature.
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