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@@ -724,11 +724,11 @@ bool ESPHomeOTAComponent::prepare_auth_nonce_(HashBase *hasher) {
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// Calculate required buffer size using the hasher
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const size_t hex_size = hasher->get_size() * 2;
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const size_t nonce_len = hasher->get_size() / 4;
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// Buffer needs to hold max of:
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// - During send: auth_type (1) + nonce (hex_size)
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// - During read: cnonce (hex_size) + response (hex_size)
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// So max is hex_size * 2
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const size_t auth_buf_size = hex_size * 2;
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// Buffer layout:
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// - auth_type (1 byte) + nonce (hex_size) - sent in AUTH_SEND
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// - cnonce (hex_size) + response (hex_size) - read in AUTH_READ at offset 1+hex_size
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// Total: 1 + hex_size + (hex_size * 2)
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const size_t auth_buf_size = 1 + hex_size + hex_size * 2;
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this->auth_buf_ = std::make_unique<uint8_t[]>(auth_buf_size);
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this->auth_buf_pos_ = 0;
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