# \#backup

**URL:** https://delvingbitcoin.org/tag/backup/43.md

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## [A simple backup scheme for wallet accounts](https://delvingbitcoin.org/t/a-simple-backup-scheme-for-wallet-accounts/1607)

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**Author:** [@salvatoshi](https://delvingbitcoin.org/u/salvatoshi)\
**Replies:** 38\
**Last updated:** [October 1, 2026, 8:52am UTC](https://delvingbitcoin.org/t/a-simple-backup-scheme-for-wallet-accounts/1607 "2026-10-01T08:52:28Z")

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For any wallet account that is not single-signature, backing up the descriptor is crucial, as its loss is likely to be catastrophic and lead to lost funds - even if the seeds that are in theory sufficient for recovery ar…

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## [PQ-single-address-backup - BIP-38 for P2MR (bc1z) - 104-char encrypted backup format](https://delvingbitcoin.org/t/pq-single-address-backup-bip-38-for-p2mr-bc1z-104-char-encrypted-backup-format/2767)

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**Author:** [@coldtest-berlin](https://delvingbitcoin.org/u/coldtest-berlin)\
**Replies:** 8\
**Last updated:** [August 23, 2026, 8:57am UTC](https://delvingbitcoin.org/t/pq-single-address-backup-bip-38-for-p2mr-bc1z-104-char-encrypted-backup-format/2767 "2026-08-23T08:57:28Z")

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After discussion on P2MR / BIP-360 (bc1z), one open question remains: how to safely store a 32-byte SLH-DSA seed offline for cold storage / inheritance. Storing 64 hex in plain text is not safe - one copy, fire/theft = …

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## [\[Rust\] descriptor-encrypt: Encrypt any descriptor such that only authorized spenders can decrypt](https://delvingbitcoin.org/t/rust-descriptor-encrypt-encrypt-any-descriptor-such-that-only-authorized-spenders-can-decrypt/1750)

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**Author:** [@josh](https://delvingbitcoin.org/u/josh)\
**Replies:** 4\
**Last updated:** [March 26, 2026, 8:14am UTC](https://delvingbitcoin.org/t/rust-descriptor-encrypt-encrypt-any-descriptor-such-that-only-authorized-spenders-can-decrypt/1750 "2026-03-26T08:14:30Z")

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Tldr descriptor-encrypt is a rust library that deterministically encrypts wallet descriptors so that they can only be decrypted by a set of keys that can spend the funds. This enables secure public backups where sensitiv…

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## [Krux: KEF Encryption Format](https://delvingbitcoin.org/t/krux-kef-encryption-format/1912)

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**Author:** [@jdlcdl](https://delvingbitcoin.org/u/jdlcdl)\
**Replies:** 0\
**Last updated:** [August 8, 2025, 4:50pm UTC](https://delvingbitcoin.org/t/krux-kef-encryption-format/1912 "2025-08-08T16:50:44Z")

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Good evening, At project krux, work to extend an existing encryption scheme is near completion. Before getting further along (release is near, this is already in beta), I’m sharing KEF\_Specifications. More eyes and an…